# A123628 (b-file synthesized from sequence entry)
1 1
2 3
3 11
4 43
5 683
6 2731
7 43691
8 174763
9 2796203
10 402488219476647465854701
11 715827883
12 10300379826060720504760427912621791994517454717
13 254760179343040585394724919772965278539769280548173566545431025735121201