# A128503 (b-file synthesized from sequence entry) 0 1 1 3 2 6 3 -3 4 10 5 -12 6 15 7 -30 8 6 9 21 10 -60 11 30 12 28 13 -105 14 90 15 -10 16 36 17 -168 18 210 19 -60 20 45 21 -252 22 420 23 -210 24 15 25 55 26 -360 27 756 28 -560 29 105 30 66 31 -495 32 1260 33 -1260 34 420 35 -21 36 78 37 -660 38 1980 39 -2520 40 1260 41 -168 42 91 43 -858 44 2970 45 -4620 46 3150 47 -756 48 28 49 105 50 -1092 51 4290 52 -7920 53 6930 54 -2520 55 252 56 120 57 -1365