# A007883 (b-file synthesized from sequence entry) 1 4 2 8 3 12 4 17 5 4 6 8 7 12 8 18 9 4 10 8 11 12 12 19 13 4 14 8 15 12 16 20 17 4 18 8 19 12 20 21 21 4 22 8 23 12 24 22 25 4 26 8 27 12 28 23 29 4 30 8 31 12 32 24 33 4 34 8 35 12 36 25 37 4 38 8 39 12 40 26 41 4 42 8 43 12 44 27 45 4 46 8 47 12 48 28 49 4 50 8 51 12 52 17 53 4 54 8 55 12 56 18 57 4 58 8 59 12 60 19 61 4 62 8 63 12 64 20 65 4 66 8 67 12 68 21 69 4 70 8 71 12 72 22 73 4 74 8 75 12 76 23 77 4 78 8 79 12 80 24 81 4 82 8 83 12 84 25