# A135900 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 1 5 1 6 2 7 3 8 1 9 1 10 6 11 12 12 5 13 1 14 1 15 25 16 63 17 30 18 7 19 1 20 1 21 138 22 421 23 220 24 56 25 9 26 1 27 1 28 970 29 3472 30 1945 31 525 32 90 33 11 34 1 35 1 36 8390 37 34380 38 20340 39 5733 40 1026 41 132 42 13 43 1 44 1 45 86796 46 399463 47 247066 48 72030 49 13305 50 1771 51 182 52 15 53 1 54 1 55 1049546 56 5344770 57 3430936