# A176476 (b-file synthesized from sequence entry)
0 0
1 1
2 6
3 27
4 113
5 464
6 1896
7 7738
8 31571
9 128800
10 525455
11 2143647
12 8745216
13 35676948
14 145547524
15 593775045
16 2422362078
17 9882257735
18 40315615409
19 164471408184
20 670976837020
21 2737314167774
22 11167134898975
23 45557394660800
24 185855747875875
25 758216295635151