# A149639 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 15
4 69
5 261
6 1189
7 4997
8 23011
9 101409
10 474129
11 2142413
12 10136447
13 46598031
14 222214471
15 1035157901
16 4963828023
17 23358551315
18 112507014881
19 533522375907
20 2579300250923
21 12305507331249
22 59674791214175
23 286107311964209
24 1391007954838179
25 6696550282875709
26 32627566832532271
27 157617888654022555