# A026995 (b-file synthesized from sequence entry)
0 1
1 3
2 8
3 20
4 54
5 147
6 368
7 873
8 2150
9 5401
10 12948
11 29952
12 71386
13 173370
14 406720
15 928013
16 2173248
17 5178906
18 11994740
19 27138972
20 62859236
21 147973950
22 339831168
23 764579850
24 1757600988
25 4102109109
26 9364407584
27 20984799649