n | a(n) |
---|---|
0 | 0 |
1 | 7 |
2 | 26 |
3 | 57 |
4 | 190 |
5 | 646 |
6 | 1914 |
7 | 5960 |
8 | 18824 |
9 | 58248 |
10 | 181196 |
11 | 565328 |
12 | 1759720 |
13 | 5477376 |
14 | 17062956 |
15 | 53131824 |
16 | 165443096 |
17 | 515219344 |
18 | 1604410136 |
19 | 4996129756 |
20 | 15558217340 |
21 | 48448930636 |
22 | 150871392396 |
23 | 469819443204 |
24 | 1463035474136 |
25 | 4555944690588 |
26 | 14187380873768 |
[0,7,26,57,190,646,1914,5960,18824,58248,181196, 565328,1759720,5477376,17062956,53131824, 165443096,515219344,1604410136,4996129756, 15558217340,48448930636,150871392396,469819443204, 1463035474136,4555944690588,14187380873768] |