# A081679 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 16
4 199
5 1756
6 13231
7 91876
8 608959
9 3922396
10 24798511
11 154802836
12 957674719
13 5885660236
14 35993747791
15 219289723396
16 1332092132479
17 8073205753276
18 48838076777071
19 295005107805556
20 1779844007102239
21 10727852491849516
22 64609947250462351
23 388869415622361316