# A121127 (b-file synthesized from sequence entry)
4 1
5 7
6 73
7 747
8 7218
9 65583
10 567540
11 4725540
12 38145600
13 300244320
14 2314123992
15 17522693064
16 130682767824
17 961866429552
18 6998356983168
19 50401223526528
20 359691525797760
21 2546051729270400
22 17889363288835200
23 124855271993773440
24 866077921088785152
25 5974010552957001984
26 40994676513378284544