n | a(n) |
---|---|
4 | 1 |
5 | 31 |
6 | 651 |
7 | 11811 |
8 | 200787 |
9 | 3309747 |
10 | 53743987 |
11 | 866251507 |
12 | 13910980083 |
13 | 222984027123 |
14 | 3571013994483 |
15 | 57162391576563 |
16 | 914807651274739 |
17 | 14638597687734259 |
18 | 234230965858250739 |
19 | 3747802679431278579 |
20 | 59965700687947706355 |
21 | 959458073589354016755 |
[1,31,651,11811,200787,3309747,53743987,866251507, 13910980083,222984027123,3571013994483, 57162391576563,914807651274739,14638597687734259, 234230965858250739,3747802679431278579, 59965700687947706355,959458073589354016755] |