# A137760 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 5 5 6 6 4 7 7 8 12 9 9 10 20 11 31 12 30 13 11 14 49 15 60 16 13 17 42 18 71 19 105 20 209 21 140 22 8 23 15 24 56 25 97 26 168 27 351 28 280 29 17 30 72 31 127 32 252 33 545 34 504 35 1471 36 630 37 10 38 19 39 90 40 161 41 360 42 799 43 840 44 2561 45 1260 46 21 47 110 48 199 49 495 50 1121 51 1320 52 4159 53 2310 54 10625 55 2772