[1,1,2,6,14,38,103,280,773,2160,6053,17064,48320,137260,391091,1117192,3198217,9173480,26357393,75845591,218550709,630536447,1821184411,5265514692,15238183779,44136519841,127940010907,3711353277401077340058523329301019091,7015876423459]