# A150984 (b-file synthesized from sequence entry)
0 1
1 2
2 9
3 37
4 161
5 730
6 3346
7 15546
8 73054
9 345329
10 1643316
11 7857545
12 37710040
13 181626285
14 877193333
15 4246748517
16 20604597884
17 100151577356
18 487604066498
19 2377460031280
20 11606953815759
21 56733071326136
22 277596501055045
23 1359592599466622
24 6664799589951282
25 32697487706097129
26 160532749524649585