# A002576 (b-file synthesized from sequence entry) 3 2 4 16 5 130 6 1424 7 23682 8 637328 9 28867714 10 2260015504 11 311718542466 12 76844461332880 13 34239915581996162 14 27825107366882974096 15 41547917209230771715202 16 114704977949192346233608592 17 588650824552337332645472468098