# A012892 (b-file synthesized from sequence entry) 0 0 1 2 2 -1 3 9 4 -30 5 127 6 -855 7 5852 8 -46452 9 422101 10 -4210605 11 46275042 12 -555647334 13 7222813951 14 -101114520507 15 1516765931792 16 -24268153134120 17 412557147859433 18 -7426039662804249 19 141094759708106686