# A030940 (b-file synthesized from sequence entry)
1 2
2 4
3 12
4 49
5 248
6 1489
7 10429
8 83439
9 750954
10 7509543
11 82604983
12 991259805
13 12886377471
14 180409284603
15 2706139269054
16 43298228304877
17 736069881182916
18 13249257861292497
19 251735899364557450
20 5034717987291149011