# A142048 (b-file synthesized from sequence entry) 0 1 1 3 2 1 3 5 4 3 5 1 6 7 7 45 8 1 9 1 10 9 11 105 12 15 13 3 14 1 15 11 16 1575 17 945 18 15 19 3 20 1 21 13 22 10395 23 175 24 945 25 9 26 1 27 1 28 15 29 315315 30 17325 31 14175 32 189 33 15 34 3 35 1 36 17 37 45045 38 23648625 39 7425 40 2835 41 189 42 15 43 3 44 1 45 19 46 6891885 47 1576575 48 23648625 49 93555 50 945 51 135 52 45 53 1 54 1 55 21 56 72747675 57 7309575