# A131469 (b-file synthesized from sequence entry) 0 0 1 1 2 1 3 2 4 3 5 3 6 2 7 4 8 5 9 5 10 6 11 7 12 7 13 6 14 4 15 8 16 9 17 9 18 8 19 10 20 11 21 11 22 12 23 13 24 13 25 14 26 15 27 15 28 16 29 17 30 17 31 14 32 18 33 19 34 16 35 17 36 18 37 20 38 10 39 19 40 20 41 21 42 21 43 22 44 23 45 23 46 24 47 25 48 25 49 24 50 26 51 27 52 27 53 28