# A365419 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 0 4 3 5 0 6 15 7 1 8 105 9 36 10 945 11 990 12 10396 13 25740 14 136942 15 675675 16 2238405 17 18378361 18 50490765 19 523833819 20 1665638325 21 15790609395 22 71976549646 23 515107015830 24 3524757498023 25 19222751356875 26 181500385651325 27 888496839591076 28 9603885700913400