# A097263 (b-file synthesized from sequence entry) 1 1 2 3 3 7 4 1 5 7 6 9 7 3 8 11 9 5 10 9 11 1 12 15 13 17 14 1 15 11 16 13 17 19 18 5 19 13 20 3 21 3 22 15 23 9 24 7 25 23 26 23 27 25 28 7 29 21 30 11 31 3 32 21 33 21 34 27 35 5 36 17 37 25 38 7 39 17 40 31 41 7 42 1 43 15 44 17 45 1 46 33 47 27 48 21 49 3 50 3 51 19 52 29 53 29 54 13 55 19 56 35 57 23 58 31 59 9 60 33 61 39 62 25 63 7 64 9 65 39 66 7 67 9 68 29 69 35 70 37 71 13 72 19 73 5 74 27 75 21 76 27 77 11 78 21 79 43 80 23