# A124638 (b-file synthesized from sequence entry) 0 1 1 0 2 3 3 4 4 12 5 20 6 45 7 80 8 168 9 296 10 573 11 1012 12 1874 13 3268 14 5824 15 10020 16 17338 17 29308 18 49511 19 82168