# A012514 (b-file synthesized from sequence entry) 0 0 1 0 2 2 3 -3 4 12 5 -40 6 310 7 -2331 8 22344 9 -214992 10 2290138 11 -26031115 12 322277780 13 -4298532888 14 61722080446 15 -947673715275 16 15499274051408 17 -268866053899936 18 4930878490414002 19 -95317757163840915