# A156744 (b-file synthesized from sequence entry) 1 -1 2 0 3 1 4 1 5 -8 6 0 7 8 8 -1 9 -1 10 9 11 -45 12 0 13 45 14 -9 15 1 16 3 17 -32 18 168 19 -672 20 0 21 672 22 -168 23 32 24 -3