# A012802 (b-file synthesized from sequence entry) 0 1 1 0 2 20 3 -784 4 26256 5 -4466176 6 435729216 7 -104111460608 8 23261262303488 9 -7794968497086464 10 2988775301503636480 11 -1434421552426973564928 12 811112609409475303936000 13 -540598484103424258178285568