# A012666 (b-file synthesized from sequence entry) 0 2 1 -4 2 230 3 -3848 4 497098 5 -14513420 6 5158219950 7 -47697728016 8 177486854140818 9 15468174530073068 10 17111710452932214902 11 4853812039531225331432 12 4006433870309112576215386