functions.php

//* Display Featured image after header on Pages and single Posts
//* only on the first page if the Page or Post is divided into multiple using <!--nextpage-->

add_action ( 'genesis_after_header', 'sk_featured_image', 9 );
function sk_featured_image() {

    // global $wp_query;
    // $paged = $wp_query->get( 'paged' );

    $paged = get_query_var( 'paged' ) ? get_query_var( 'paged' ) : false;

    // echo 'The value of $paged is: ' . $paged;

    if ( has_post_thumbnail() && ( is_page() || is_single() ) && $paged === false ) {
        $image = genesis_get_image( 'format=url' );
        printf( '<div class="my-featured-image"><img src="%s" alt="%s" class="aligncenter" /></div>', $image, the_title_attribute( 'echo=0' ) );

    }

}