# A004492 (b-file synthesized from sequence entry) 0 3 1 4 2 5 3 6 4 7 5 8 6 0 7 1 8 2 9 12 10 13 11 14 12 15 13 16 14 17 15 9 16 10 17 11 18 21 19 22 20 23 21 24 22 25 23 26 24 18 25 19 26 20 27 30 28 31 29 32 30 33 31 34 32 35 33 27 34 28 35 29 36 39 37 40 38 41 39 42 40 43 41 44 42 36 43 37 44 38 45 48 46 49 47 50 48 51 49 52 50 53 51 45 52 46 53 47 54 57 55 58 56 59 57 60