n | a(n) |
---|---|
0 | 1 |
1 | 18 |
2 | 378 |
3 | 7938 |
4 | 166698 |
5 | 3500658 |
6 | 73513818 |
7 | 1543790178 |
8 | 32419593738 |
9 | 680811468498 |
10 | 14297040838458 |
11 | 300237857607618 |
12 | 6304995009759978 |
13 | 132404895204959538 |
14 | 2780502799304150298 |
15 | 58390558785387156258 |
16 | 1226201734493130281418 |
17 | 25750236424355735909778 |
[1,18,378,7938,166698,3500658,73513818,1543790178, 32419593738,680811468498,14297040838458, 300237857607618,6304995009759978, 132404895204959538,2780502799304150298, 58390558785387156258,1226201734493130281418, 25750236424355735909778] |