n | a(n) |
---|---|
1 | 5 |
2 | 19 |
3 | 31 |
4 | 101 |
5 | 179 |
6 | 655 |
7 | 1189 |
8 | 4451 |
9 | 8111 |
10 | 30469 |
11 | 55555 |
12 | 208799 |
13 | 380741 |
14 | 1431091 |
15 | 2609599 |
16 | 9808805 |
17 | 17886419 |
18 | 67230511 |
19 | 122595301 |
20 | 460804739 |
21 | 840280655 |
22 | 3158402629 |
23 | 5759369251 |
24 | 21648013631 |
25 | 39475304069 |
26 | 148377692755 |
27 | 270567759199 |
28 | 1016995835621 |
29 | 1854499010291 |
[5,19,31,101,179,655,1189,4451,8111,30469,55555, 208799,380741,1431091,2609599,9808805,17886419, 67230511,122595301,460804739,840280655,3158402629, 5759369251,21648013631,39475304069,148377692755, 270567759199,1016995835621,1854499010291] |