# A012626 (b-file synthesized from sequence entry) 0 0 1 2 2 -12 3 -2 4 10248 5 -672678 6 -20843460 7 16777261590 8 -2958597356400 9 -195442688499150 10 352062527506877700 11 -110808084056350289490 12 -28855116263423436192360 13 55915766816627672060266890