# A148007 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 8 5 15 6 44 7 91 8 314 9 717 10 2462 11 5786 12 20723 13 50596 14 188018 15 473183 16 1804072 17 4645335 18 17787660 19 46419584 20 181375177 21 481275126 22 1911271468 23 5141399599 24 20539168658 25 55762292565 26 224393416829 27 614548182426 28 2502149168249 29 6916703340431 30 28335787685261 31 78869864682145 32 324320769451124