# A074435 (b-file synthesized from sequence entry)
1 0
2 0
3 3
4 8
5 42
6 214
7 1008
8 5094
9 29160
10 169987
11 952560
12 5196096
13 28304640
14 155483424
15 863910489
16 4857268896
17 27541503360
18 156728297088
19 892662156288
20 5087915629975
21 29045467518171
22 166191833516125
23 953325512487936
24 5481559804635648
25 31581437286776820