# A004510 (b-file synthesized from sequence entry) 0 21 1 22 2 23 3 24 4 25 5 26 6 18 7 19 8 20 9 3 10 4 11 5 12 6 13 7 14 8 15 0 16 1 17 2 18 12 19 13 20 14 21 15 22 16 23 17 24 9 25 10 26 11 27 48 28 49 29 50 30 51 31 52 32 53 33 45 34 46 35 47 36 30 37 31 38 32 39 33 40 34 41 35 42 27 43 28 44 29 45 39 46 40 47 41 48 42 49 43 50 44 51 36 52 37 53 38 54 75 55 76 56 77 57 78