# A176231 (b-file synthesized from sequence entry) 0 1 1 -1 2 1 3 3 4 -6 5 1 6 -15 7 45 8 -15 9 1 10 105 11 -420 12 210 13 -28 14 1 15 -945 16 4725 17 -3150 18 630 19 -45 20 1 21 10395 22 -62370 23 51975 24 -13860 25 1485 26 -66 27 1 28 -135135 29 945945 30 -945945 31 315315 32 -45045 33 3003 34 -91 35 1 36 2027025 37 -16216200 38 18918900 39 -7567560 40 1351350 41 -120120 42 5460 43 -120 44 1