n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 22 |
4 | 145 |
5 | 1081 |
6 | 8863 |
7 | 78751 |
8 | 752587 |
9 | 7708483 |
10 | 84532222 |
11 | 992628616 |
12 | 12487788067 |
13 | 168344145919 |
14 | 2430351826084 |
15 | 37517872149790 |
16 | 617842147959019 |
17 | 10821864145358779 |
18 | 200955801421862020 |
19 | 3943205940005194330 |
20 | 81506338541922078355 |
21 | 1769606318933022398611 |
[1,1,4,22,145,1081,8863,78751,752587,7708483, 84532222,992628616,12487788067,168344145919, 2430351826084,37517872149790,617842147959019, 10821864145358779,200955801421862020, 3943205940005194330,81506338541922078355, 1769606318933022398611] |