n | a(n) |
---|---|
1 | 1 |
2 | 8 |
3 | 74 |
4 | 430 |
5 | 2426 |
6 | 13062 |
7 | 67676 |
8 | 342972 |
9 | 1707597 |
10 | 8384136 |
11 | 40716024 |
12 | 195950228 |
13 | 935955604 |
14 | 4442192472 |
15 | 20968437076 |
16 | 98509310972 |
17 | 460879910601 |
18 | 2148369624844 |
19 | 9981992555058 |
20 | 46244594782978 |
21 | 213681269956154 |
22 | 985012878231418 |
[1,8,74,430,2426,13062,67676,342972,1707597, 8384136,40716024,195950228,935955604,4442192472, 20968437076,98509310972,460879910601, 2148369624844,9981992555058,46244594782978, 213681269956154,985012878231418] |