# A012574 (b-file synthesized from sequence entry) 0 0 1 0 2 2 3 -3 4 4 5 -20 6 278 7 -2079 8 12024 9 -102024 10 1526202 11 -21144915 12 254194620 13 -3422013660 14 60148579710 15 -1146224919735 16 21194144971440 17 -407432463085200 18 8837992445168370 19 -209438776595814435 20 5103026808528257460 21 -128021892811081933860