# A064231 (b-file synthesized from sequence entry) 1 2 2 8 3 8 4 32 5 288 6 192 7 128 8 6272 9 36864 10 22272 11 512 12 115200 13 3456000 14 18432000 15 11550720 16 2048 17 1968128 18 243302400 19 6471168000 20 36373708800 21 25629327360 22 8192 23 32514048 24 14809546752 25 1557061632000 26 43378316083200 27 281770208133120