# A356439 (b-file synthesized from sequence entry)
0 1
1 1
2 6
3 39
4 344
5 3410
6 42234
7 567126
8 8812880
9 149409144
10 2793232440
11 56224856160
12 1234342760232
13 28773852409848
14 718719835537872
15 19045601930731320
16 534564416062012800
17 15792205306586537280
18 491639547448322794944
19 16024048206145815040704