# A007119 (b-file synthesized from sequence entry) 0 1 1 0 2 -2 3 -3 4 8 5 40 6 -20 7 -651 8 -1160 9 10872 10 53102 11 -213235 12 -2765684 13 -4784988 14 42740178 15 -433914495 16 -15184673712 17 -207885336400 18 -2790244125426 19 -48660847539651 20 -950341379177012 21 -18783035394110820