# A152190 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 12 4 15 5 99 6 120 7 725 8 861 9 5092 10 5995 11 35223 12 41328 13 242265 14 283881 15 1662716 16 1947351 17 11402203 18 13351528 19 78166989 20 91523685 21 535804116 22 627341331 23 3672559727 24 4299936480 25 25172370289 26 29472399505 27 172534703340