# A154005 (b-file synthesized from sequence entry)
0 1
1 2
2 2
3 4
4 8
5 15
6 31
7 126
8 240
9 943
10 3992
11 15073
12 60221
13 508875
14 1923344
15 15346988
16 129704729
17 978528991
18 7823328579
19 131906890104
20 997545267990
21 15909346537935
22 268935937214485
23 4056896542025441
24 64868711455854407
25 2187311046708551809