# A098910 (b-file synthesized from sequence entry) 1 2 2 1 3 3 4 1 5 4 6 3 7 5 8 3 9 6 10 3 11 7 12 3 13 8 14 7 15 8 16 6 17 9 18 3 19 10 20 3 21 12 22 9