# A137766 (b-file synthesized from sequence entry) 1 1 2 2 3 1 4 3 5 7 6 12 7 1 8 4 9 9 10 20 11 1 12 5 13 49 14 60 15 11 16 30 17 1 18 6 19 71 20 105 21 13 22 42 23 1 24 7 25 351 26 280 27 97 28 168 29 15 30 56 31 1 32 8 33 545 34 504 35 127 36 252 37 17 38 72 39 1 40 9 41 2561 42 1260 43 799 44 840 45 161 46 360 47 19 48 90 49 1 50 10 51 4159 52 2310 53 1121 54 1320 55 199 56 495 57 21 58 110 59 1 60 11