# A377662 (b-file synthesized from sequence entry)
0 1
1 3
2 14
3 80
4 534
5 4102
6 35916
7 354888
8 3915750
9 47754938
10 637840356
11 9256590928
12 144977618044
13 2436460447020
14 43719637179224
15 834042701945520
16 16852447379512710
17 359468276129261730
18 8070500634880125300
19 190211302604157871680
20 4695001374741310892820