# A023923 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 24 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 132 21 0 22 0 23 0 24 132 25 0 26 0 27 440 28 0 29 0 30 0 31 0 32 990 33 0 34 0 35 2904 36 924 37 0 38 0 39 0 40 0 41 0 42 0 43 0 44 3984 45 0 46 0 47 0 48 2970 49 0 50 0 51 8184 52 0 53 0 54 0 55 0 56 12408 57 0 58 0 59 31152 60 7920 61 0 62 0 63 0 64 0 65 0 66 0 67 0 68 30360 69 0 70 0 71 0 72 19800 73 0 74 0 75 45144 76 0