# A150647 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 28
4 117
5 509
6 2279
7 10366
8 47724
9 222280
10 1043551
11 4929582
12 23413629
13 111722678
14 535090212
15 2570945247
16 12388203875
17 59841383394
18 289679576866
19 1404971597312
20 6826074319176
21 33215354074742
22 161846678561509
23 789618624113747
24 3856821700125396
25 18857888173446861
26 92293743446831249