# A152970 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 4 5 1 6 1 7 11 8 11 9 1 10 1 11 15 12 88 13 15 14 1 15 1 16 72 17 287 18 287 19 72 20 1 21 1 22 420 23 840 24 2518 25 840 26 420 27 1 28 1 29 2880 30 5760 31 11519 32 11519 33 5760 34 2880 35 1 36 1 37 22680 38 45360 39 68040 40 90718 41 68040 42 45360 43 22680 44 1 45 1 46 201600 47 403200 48 604800 49 604799 50 604799 51 604800