n | a(n) |
---|---|
-2 | 0 |
-1 | 1 |
0 | 0 |
1 | 1 |
2 | 7 |
3 | 8 |
4 | 15 |
5 | 23 |
6 | 38 |
7 | 61 |
8 | 343 |
9 | 404 |
10 | 747 |
11 | 7127 |
12 | 29255 |
13 | 387442 |
14 | 1579023 |
15 | 1966465 |
16 | 5511953 |
17 | 150789196 |
18 | 156301149 |
19 | 4527221368 |
20 | 4683522517 |
21 | 13894266402 |
22 | 32472055321 |
23 | 111310432365 |
24 | 255092920051 |
25 | 1896960872722 |
26 | 2152053792773 |
[0,1,0,1,7,8,15,23,38,61,343,404,747,7127,29255, 387442,1579023,1966465,5511953,150789196, 156301149,4527221368,4683522517,13894266402, 32472055321,111310432365,255092920051, 1896960872722,2152053792773] |