n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 9 |
3 | 21 |
4 | 46 |
5 | 99 |
6 | 209 |
7 | 436 |
8 | 901 |
9 | 1849 |
10 | 3774 |
11 | 7671 |
12 | 15541 |
13 | 31404 |
14 | 63329 |
15 | 127501 |
16 | 256366 |
17 | 514939 |
18 | 1033449 |
19 | 2072676 |
20 | 4154701 |
21 | 8324529 |
22 | 16673534 |
23 | 33386671 |
24 | 66837421 |
25 | 133778524 |
26 | 267724809 |
27 | 535721061 |
28 | 1071881326 |
29 | 2144473299 |
30 | 4290096449 |
31 | 8582053396 |
32 | 17167117141 |
[1,4,9,21,46,99,209,436,901,1849,3774,7671,15541, 31404,63329,127501,256366,514939,1033449,2072676, 4154701,8324529,16673534,33386671,66837421, 133778524,267724809,535721061,1071881326, 2144473299,4290096449,8582053396,17167117141] |