Wordpress: First as featured, then two column posts

wp_featured_and_twocolumnwrap.php

<?php

 
 $do_not_duplicate=0; //initialize $do_not_duplicate
 if(!is_paged()): //is_paged returns true if we are on page 2,3,... So if we're on page 1 do:
      $my_query = new WP_Query('posts_per_page=1'); // Gets the first post
      while ($my_query->have_posts()) : $my_query->the_post();
           $do_not_duplicate = $post->ID;

// Do stuff for the first article

      endwhile;
 endif;




 // gets the rest of the posts
 if (have_posts()) :
    while (have_posts()) : the_post();
         if( $post->ID == $do_not_duplicate ) continue; // If is not the first post do:
			if( $wp_query->current_post%2 == 0 ) echo "\n".'<div class="twocolumnpostswrap">'."\n"; // the two-column wrapper

// The other posts

			if( $wp_query->current_post%2 == 1 || $wp_query->current_post == $wp_query->post_count-1 ) echo '</div> <!--/.twocolumnpostswrap-->'."\n";
    endwhile;
  endif;
 ?>