# A219092 (b-file synthesized from sequence entry)
0 1
1 4
2 12
3 33
4 90
5 244
6 665
7 1808
8 4914
9 13359
10 36315
11 98715
12 268337
13 729416
14 1982759
15 5389698
16 14650719
17 39824784
18 108254987
19 294267566
20 799902177
21 2174359553
22 5910522063
23 16066464720
24 43673179097
25 118716009132
26 322703570371