# A004498 (b-file synthesized from sequence entry) 0 9 1 10 2 11 3 12 4 13 5 14 6 15 7 16 8 17 9 18 10 19 11 20 12 21 13 22 14 23 15 24 16 25 17 26 18 0 19 1 20 2 21 3 22 4 23 5 24 6 25 7 26 8 27 36 28 37 29 38 30 39 31 40 32 41 33 42 34 43 35 44 36 45 37 46 38 47 39 48 40 49 41 50 42 51 43 52 44 53 45 27 46 28 47 29 48 30 49 31 50 32 51 33 52 34 53 35 54 63 55 64 56 65 57 66