# A004512 (b-file synthesized from sequence entry) 0 23 1 21 2 22 3 26 4 24 5 25 6 20 7 18 8 19 9 5 10 3 11 4 12 8 13 6 14 7 15 2 16 0 17 1 18 14 19 12 20 13 21 17 22 15 23 16 24 11 25 9 26 10 27 50 28 48 29 49 30 53 31 51 32 52 33 47 34 45 35 46 36 32 37 30 38 31 39 35 40 33 41 34 42 29 43 27 44 28 45 41 46 39 47 40 48 44 49 42 50 43 51 38 52 36 53 37 54 77 55 75 56 76 57 80