[1,1,2,6,24,114,608,3554,22480,152546,1103200,
8456994,68411632,581745250,5183126016,48245682338,
467988498064,4720072211938,49400302118560,
535546012710434,6004045485933104,
69507152958422370,829789019700511040,
10202854323325253538,129061753086335478736]
|