Add pagination on Categories

    <?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    = 5;
    $number_of_series = count( get_terms( 'category') );
    $offset  = $per_page * ( $paged - 1);
   
    // Setup the arguments to pass in
    $args = array(
    'offset'      => $offset,
    'number'      => $per_page,
    'hide_empty'=>'0'
    );
   
    // Gather the series
    $series = get_terms( 'category', $args );
   
    // Loop through and display the series
    foreach($series as $s)
    {
    $theurl = get_term_link($s, 'category');
    echo "<div class=\"ser-img img\" ><a href=\"" . $theurl  . "\">". $s->name ."</a>";
   
    }
    echo "<br />";
    $big = 999999;
    echo paginate_links( array(
    'base'   => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
    'format' => '?paged=%#%',
    'current'=> $paged,
    'total'  => ceil( $number_of_series / $per_page ) // 3 items per page
    ) );
    ?>