# A129981 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 7
4 15
5 30
6 78
7 183
8 567
9 1512
10 5352
11 15747
12 61827
13 196962
14 842082
15 2869107
16 13191027
17 47650452
18 233445012
19 888174087
20 4604065287
21 18353375862
22 100102982262
23 416337125487
24 2378327679087
25 10284181259712
26 61295935653312