# A028203 (b-file synthesized from sequence entry) 0 1 1 33 2 691 3 11757 4 177835 5 2499021 6 33451867 7 433216509 8 5483226859 9 68297761389 10 841179979003 11 10278678991581 12 124904130163723 13 1511929278991437 14 18252066460636699 15 219926530250218173