# A033980 (b-file synthesized from sequence entry)
0 1
1 50
2 25
3 1226
4 613
5 30038
6 15019
7 735932
8 367966
9 183983
10 9015168
11 4507584
12 2253792
13 1126896
14 563448
15 281724
16 140862
17 70431
18 3451120
19 1725560
20 862780
21 431390
22 215695
23 10569056
24 5284528
25 2642264