# A081421 (b-file synthesized from sequence entry) 0 1 1 17 2 353 3 8177 4 198593 5 4912337 6 122336033 7 3054149297 8 76315468673 9 1907542343057 10 47685459212513 11 1192108586037617 12 29802463602463553 13 745059330625296977 14 18626462930705797793 15 465661390253305305137