Pagination Not Displaying on Custom Term Archive

I am trying to achieve pagination on a custom template I have that displays an archive of terms. It appears to be working because when I navigate to mysite/taxonomy/page/2/ or 3,4, etc the pagination works. However there are not any actual pagination links showing on the bottom of my page. I am following this tutorial as well as the Codex instructions, but I have to be missing something. Can someone please help?

<?php get_header(); ?>

<div class="container">
<div class="row">
  <div class="col-md-12">

<div class="row">
  <div class="col-md-9">
<h2>Index Post Type Archive </h2>
<hr/>
	<!-- Begin LG Screen View-->
    <span class="visible-lg">
          <article> 

		<div class="row">
    <?php

	if ( get_query_var( 'paged' ) )
	$paged = get_query_var('paged');
else if ( get_query_var( 'page' ) )
	$paged = get_query_var( 'page' );
else
	$paged = 1;

$per_page    = 12;
$number_of_terms = count( get_terms( '100list' ) ); // This counts the total number terms in the taxonomy with a function)
$offset      = $per_page * ( $paged - 1) ;

    $libargs=array(
      'orderby'           => 'name',
         'order'             => 'ASC',
        'hide_empty'        => 0,
        'exclude'           => array(16, 20, 22,25, 27, 28, 30, 4, 42, 7, 43 ), //* Enter ID's of parent categories to exclude from list
        'taxonomy'      => '100list',
        'parent'               => '',
		'number'       => $per_page,
		'offset'       => $offset,

        );  

        $libcats=get_categories($libargs);  

        $i = 0;

        foreach($libcats as $lc){

            if( $i % 4 == 0 ) {
             echo '<div class="clearfix"></div>';
            }
		  $i++;
            echo '<div class="col-lg-3">';

            $termlink = get_term_link( $lc->slug, '100list' );
        ?>
       <div class="thumbnail">
            <div class="caption">
                <br/><br/>
                <h1><span class="label label-warning"><?php echo  $lc->count  ?></span></h1>
                <p> Symbols </p>
                <p> <a class="label label-default" href="<?php echo $termlink; ?>"> View Group</a> </p>
            </div>
            <!-- Get Image by Attachment ID Start-->
            <?php
                $attachment_id = get_field('taximage', '100list_'.$lc->term_id);
                if ($attachment_id) {
                    $image = wp_get_attachment_image_src($attachment_id, 'industrygroup-img');
                    if ($image) {
                        ?>
                        <img class="img-responsive" src="<?php echo $image[0]; ?>" />
                        <?php     } }
            else { ?>
<img class="img-responsive" src="https://www.runningalpha.com/wp-content/uploads/2014/08/RA_logo_300px_groups.jpg" alt="<?php the_title(); ?>" />

<?php } ?>
            <!-- Get Image by Attachment ID End-->
        </div>
    <small><p class="text-center"> <a href="<?php echo $termlink; ?>"> <?php echo $lc->name; ?></a> </p>  </small>

    <?php  echo '</div>'; }	?>

    <?php  if (function_exists("pagination")) {
$big = 999999999; // need an unlikely integer
	echo paginate_links( array(
		'base'    => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
		'format'  => '/page/%#%',
		'current' => $paged,
		'total'   => ceil( $number_of_terms / $per_page ) // 20 items per page

	) );
}
 	?>

</div>
</article>
</span>
      </div> <!-- End col-md-9 -->
    <div class="col-md-3">
      <?php include("sidebar100list.php"); ?>
 </div>  <!-- End col-md-3 -->
</div><!-- End row -->
</div><!-- End Container -->
<?php get_footer(); ?>