# A153554 (b-file synthesized from sequence entry) 0 1 1 2 2 8 3 63 4 981 5 30204 6 1838258 7 221168494 8 52603569364 9 24733230863897 10 22989019296091325 11 42240982234024058721 12 153433971895782184082591 13 1101749861754584729817380799 14 15639340662707098047927162649965