# A025275 (b-file synthesized from sequence entry)
1 1
2 0
3 1
4 0
5 0
6 1
7 2
8 4
9 10
10 24
11 56
12 133
13 318
14 760
15 1822
16 4384
17 10576
18 25578
19 62020
20 150744
21 367220
22 896496
23 2193104
24 5375405
25 13199606
26 32468912
27 80000438
28 197423104
29 487921440
30 1207578750
31 2992704924
32 7426194328
33 18449964876
34 45890849360