# A148012 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 8 5 15 6 44 7 101 8 348 9 859 10 2926 11 7765 12 28092 13 77797 14 288226 15 835551 16 3149704 17 9376877 18 36183832 19 110801091 20 431609988 21 1350519440 22 5338560871 23 17003928647 24 67861860571 25 219953201097 26 885178666480 27 2907032661937 28 11800981627623 29 39264792923311 30 160349091607954 31 539475559104643 32 2217553429366461