# A049468 (b-file synthesized from sequence entry) 0 2 1 3 2 5 3 7 4 8 5 9 6 12 7 13 8 11 9 11 10 16 11 19 12 17 13 18 14 21 15 19 16 14 17 13 18 20 19 25 20 23 21 26 22 31 23 29 24 22 25 23 26 31 27 34 28 29 29 27 30 30 31 25 32 17 33 15 34 24 35 31 36 29 37 34 38 41 39 39 40 30 41 33 42 45 43 50 44 43 45 41 46 46 47 39 48 27 49 28 50 41 51 49 52 44 53 47 54 55 55 50 56 37 57 35 58 46 59 49 60 41 61 36 62 39 63 31 64 20 65 17 66 28 67 37