# A275839 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 5 4 6 5 14 6 24 7 54 8 120 9 145 10 264 11 411 12 464 13 720 14 842 15 1560 16 2042 17 2408 18 2670 19 5040 20 5766 21 10800 22 13686 23 16590 24 18144 25 40320 26 45384 27 85680 28 105864 29 106153 30 131184 31 141960 32 145728