# A118244 (b-file synthesized from sequence entry) 0 1 1 2 2 1 3 5 4 5 5 2 6 12 7 21 8 18 9 6 10 29 11 80 12 116 13 84 14 24 15 70 16 290 17 642 18 774 19 480 20 120