n | a(n) |
---|---|
2 | 1 |
3 | 2 |
4 | 5 |
5 | 19 |
6 | 91 |
7 | 531 |
8 | 3641 |
9 | 28673 |
10 | 254871 |
11 | 2523223 |
12 | 27526069 |
13 | 328018989 |
14 | 4239014627 |
15 | 59043418019 |
16 | 881715042417 |
17 | 14052333488521 |
18 | 238063061452591 |
19 | 4271909380510383 |
20 | 80941440893880941 |
21 | 1614781745832924773 |
22 | 33833522293642233339 |
23 | 742799603083145395579 |
[1,2,5,19,91,531,3641,28673,254871,2523223, 27526069,328018989,4239014627,59043418019, 881715042417,14052333488521,238063061452591, 4271909380510383,80941440893880941, 1614781745832924773,33833522293642233339, 742799603083145395579] |