# A009332 (b-file synthesized from sequence entry) 0 0 1 1 2 -1 3 -2 4 4 5 0 6 -1 7 -16 8 64 9 -256 10 1319 11 -7680 12 49204 13 -346112 14 2653559 15 -22022144 16 196707424 17 -1881735168 18 19194804719 19 -207983607808 20 2385684870724 21 -28880901505024 22 367985503366799 23 -4922617151619072 24 68980888889771104