# A107351 (b-file synthesized from sequence entry) 0 1 1 3 2 9 3 21 4 45 5 87 6 159 7 273 8 450 9 712 10 1092 11 1626 12 2364 13 3360 14 4686 15 6420 16 8661 17 11517 18 15121 19 19617 20 25179 21 31995 22 40287 23 50295 24 62298 25 76596 26 93534 27 113482 28 136860 29 164118 30 195762 31 232332 32 274431 33 322701 34 377853 35 440643 36 511903 37 592515 38 683445 39 785715