# A144684 (b-file synthesized from sequence entry)
0 1
1 1
2 9
3 265
4 15281
5 1379441
6 173762425
7 28528990393
8 5838405067745
9 1443332192692321
10 421171717332106601
11 142520112730201819625
12 55149333235223148407953
13 24128837930726025305020369