# A193970 (b-file synthesized from sequence entry) 0 1 1 3 2 1 3 7 4 4 5 1 6 21 7 12 8 7 9 2 10 54 11 33 12 19 13 11 14 3 15 144 16 88 17 54 18 31 19 18 20 5 21 376 22 232 23 142 24 87 25 50 26 29 27 8 28 987 29 609 30 376 31 230 32 141 33 81 34 47 35 13 36 2583 37 1596 38 985 39 608 40 372 41 228 42 131 43 76 44 21 45 6765 46 4180 47 2583 48 1594 49 984 50 602 51 369 52 212 53 123 54 34 55 17710 56 10945 57 6763