# A141476 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 1 5 3 6 6 7 2 8 3 9 13 10 24 11 6 12 6 13 13 14 71 15 120 16 24 17 18 18 26 19 71 20 461 21 720 22 120 23 72 24 78 25 142 26 461 27 3447 28 5040 29 720 30 360 31 312 32 426 33 922 34 3447 35 29093 36 40320 37 5040 38 2160 39 1560 40 1704 41 2766 42 6894 43 29093 44 273343 45 362880 46 40320 47 15120 48 9360 49 8520 50 11064 51 20682