# A155520 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 2 5 4 6 2 7 6 8 1 9 1 10 5 11 2 12 6 13 9 14 1 15 4 16 4 17 4 18 2 19 1 20 2 21 2