# A025841 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 1 4 0 5 0 6 2 7 1 8 0 9 2 10 1 11 0 12 3 13 2 14 1 15 3 16 2 17 1 18 4 19 3 20 2 21 5 22 3 23 2 24 6 25 4 26 3 27 7 28 5 29 3 30 8 31 6 32 4 33 9 34 7 35 5 36 10 37 8 38 6 39 11 40 9 41 7 42 13 43 10 44 8 45 14 46 11 47 9 48 16 49 13 50 10 51 17 52 14 53 11 54 19 55 16 56 13 57 20 58 17 59 14 60 22 61 19 62 16 63 24 64 20 65 17 66 26 67 22