# A148279 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 16 5 46 6 167 7 495 8 2102 9 7198 10 29506 11 101661 12 447830 13 1662061 14 7152135 15 26571095 16 119610098 17 465593444 18 2056854630 19 7994549636 20 36480375305 21 146548393847 22 658189128755 23 2636694594312 24 12142942495573 25 49881495189460 26 226580814242014 27 927564903712122 28 4300144504106823