# A258053 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 0 4 1 5 -2 6 -4 7 0 8 -7 9 20 10 42 11 0 12 84 13 -272 14 -584 15 0 16 -1239 17 4270 18 9288 19 0 20 20370 21 -72860 22 -159840 23 0 24 -358092 25 1312824 26 2897400 27 0 28 6587944 29 -24580512 30 -54490848 31 0 32 -125256887 33 473534676 34 1053346410 35 0 36 2441648384 37 -9325376200 38 -20800103016 39 0 40 -48534848222 41 186886877456 42 417769301220 43 0