n | a(n) |
---|---|
2 | 3 |
3 | 31 |
4 | 196 |
5 | 1002 |
6 | 4593 |
7 | 19833 |
8 | 82818 |
9 | 339340 |
10 | 1375639 |
11 | 5543331 |
12 | 22263216 |
13 | 89249214 |
14 | 357422541 |
15 | 1430607325 |
16 | 5724394990 |
17 | 22901773824 |
18 | 91616007699 |
19 | 366482904615 |
20 | 1465971463740 |
21 | 5863969740370 |
22 | 23456055121513 |
23 | 93824589584001 |
[3,31,196,1002,4593,19833,82818,339340,1375639, 5543331,22263216,89249214,357422541,1430607325, 5724394990,22901773824,91616007699,366482904615, 1465971463740,5863969740370,23456055121513, 93824589584001] |