# A093864 (b-file synthesized from sequence entry) 1 11 2 53 3 173 4 521 5 1523 6 4327 7 11579 8 31469 9 85411 10 229547 11 614477 12 1640461 13 4393369 14 11806297 15 31656553 16 84979847 17 228346229 18 614582509 19 1654328267 20 4457160931 21 12016414601 22 32419200013 23 87508870037 24 236325429049 25 638490906857 26 1725782162981 27 4666340800001