# A134939 (b-file synthesized from sequence entry) 0 0 1 2 2 64 3 1274 4 21760 5 348722 6 5422144 7 83000234 8 1259729920 9 19027002722 10 286576949824 11 4309163074394 12 64731832372480 13 971825991711122 14 14585021567101504 15 218843984372767754 16 3283277591489597440 17 49254723695591689922 18 738870890792896773184 19 11083513664870504400314