# A123750 (b-file synthesized from sequence entry)
1 1
2 4
3 17
4 94
5 667
6 5752
7 58053
8 669970
9 8698991
10 125499820
11 1991637529
12 34479906886
13 646671878595
14 13061304372448
15 282652185684845
16 6524494505342842
17 160018549741811479
18 4155443426929596436
19 113905714869793400001
20 3286624199431263921838