# A025850 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 1 4 0 5 0 6 1 7 0 8 1 9 2 10 0 11 1 12 2 13 0 14 1 15 2 16 1 17 2 18 3 19 1 20 2 21 3 22 1 23 2 24 4 25 2 26 3 27 5 28 2 29 3 30 5 31 2 32 4 33 6 34 3 35 5 36 7 37 3 38 5 39 7 40 4 41 6 42 8 43 5 44 7 45 9 46 5 47 7 48 10 49 6 50 8 51 11 52 7 53 9 54 12 55 7 56 10 57 13 58 8 59 11 60 14 61 9 62 12 63 15 64 10 65 13 66 16 67 11 68 14 69 17 70 12 71 15 72 19