# A126009 (b-file synthesized from sequence entry) 0 0 1 2 2 1 3 3 4 9 5 10 6 8 7 12 8 6 9 4 10 5 11 11 12 7 13 17 14 18 15 19 16 20 17 13 18 14 19 15 20 16 21 21