# A278075 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 0 4 -1 5 2 6 0 7 1 8 -6 9 6 10 0 11 -1 12 14 13 -36 14 24 15 0 16 1 17 -30 18 150 19 -240 20 120 21 0 22 -1 23 62 24 -540 25 1560 26 -1800 27 720 28 0 29 1 30 -126 31 1806 32 -8400 33 16800 34 -15120 35 5040 36 0 37 -1 38 254 39 -5796 40 40824 41 -126000 42 191520 43 -141120 44 40320 45 0 46 1 47 -510 48 18150 49 -186480 50 834120 51 -1905120 52 2328480 53 -1451520 54 362880