# A051889 (b-file synthesized from sequence entry) 0 0 1 1 2 1 3 2 4 2 5 2 6 3 7 3 8 3 9 3 10 4 11 4 12 4 13 5 14 5 15 5 16 5 17 6 18 6 19 6 20 6 21 6 22 7 23 7 24 7 25 7 26 8 27 8 28 8 29 8 30 9 31 9 32 9 33 9 34 9 35 10 36 10 37 10 38 10 39 10 40 11 41 11 42 11 43 11 44 12 45 12 46 12 47 12 48 12 49 13 50 13 51 13 52 13 53 13 54 14 55 14 56 14 57 14 58 14 59 15 60 15 61 15 62 15 63 16 64 16 65 16 66 16 67 16 68 17 69 17 70 17 71 17 72 17 73 18 74 18 75 18 76 18 77 18 78 19 79 19 80 19