# A026330 (b-file synthesized from sequence entry)
0 0
1 3
2 16
3 90
4 504
5 2849
6 16224
7 92988
8 535840
9 3101769
10 18023856
11 105076972
12 614318040
13 3600356175
14 21146233920
15 124436295054
16 733493553408
17 4330155834122
18 25597817572320
19 151508857016244
20 897759260100648
21 5325078489063039