# A012016 (b-file synthesized from sequence entry) 0 1 1 3 2 41 3 1299 4 74609 5 6787811 6 898506649 7 163241051315 8 39007280136801 9 11866656488375747 10 4479287777805494665 11 2054673461380880189779 12 1125793481954983195433681 13 726247496033154181534638755