# A068892 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 11 11 13 12 15 13 17 14 22 15 26 16 31 17 33 18 37 19 39 20 44 21 51 22 55 23 62 24 66 25 71