# A037572 (b-file synthesized from sequence entry)
1 2
2 15
3 107
4 751
5 5258
6 36808
7 257658
8 1803607
9 12625251
10 88376759
11 618637314
12 4330461200
13 30313228402
14 212192598815
15 1485348191707
16 10397437341951
17 72782061393658
18 509474429755608
19 3566321008289258