n | a(n) |
---|---|
1 | 4 |
2 | 5 |
3 | 19 |
4 | 55 |
5 | 271 |
6 | 1889 |
7 | 10529 |
8 | 59777 |
9 | 101249 |
10 | 406783 |
11 | 6581249 |
12 | 12164095 |
13 | 65071999 |
14 | 652963841 |
15 | 6548416001 |
16 | 13858918399 |
17 | 145046192129 |
18 | 75389157377 |
19 | 943344975871 |
20 | 23114453401601 |
21 | 108772434771967 |
22 | 101249475018751 |
23 | 551785225781249 |
24 | 9740041658826751 |
25 | 136182187711004671 |
26 | 4560483868737535 |
[4,5,19,55,271,1889,10529,59777,101249,406783, 6581249,12164095,65071999,652963841,6548416001, 13858918399,145046192129,75389157377,943344975871, 23114453401601,108772434771967,101249475018751, 551785225781249,9740041658826751, 136182187711004671,4560483868737535] |