[1,2,4,8,18,44,120,352,1116,3736,13232,48928, 189080,757584,3148064,13497600,59704336,271503648, 1268817472,6078518912,29837183008,149789875904, 768674514816,4026518397440,21518708975040, 117199152735616,650184360936192,3670861106911744]