# A117869 (b-file synthesized from sequence entry)
0 1
1 3
2 10
3 30
4 84
5 232
6 635
7 1731
8 4711
9 12814
10 34840
11 94714
12 257468
13 699881
14 1902485
15 5171502
16 14057612
17 38212564
18 103872533
19 282354833
20 767520028
21 2086335762
22 5671248608
23 15416052054
24 41905174183
25 113910073520
26 309639682948