# A191635 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 0 4 -4 5 -10 6 14 7 196 8 440 9 -3168 10 -27856 11 -16192 12 1164272 13 7585552 14 -23621872 15 -695464800 16 -3191206912 17 38919085184 18 661218763136 19 1320994868224 20 -74958266666752 21 -932434904045568 22 2633042904931328 23 193750955482836992