n | a(n) |
---|---|
0 | 4 |
1 | 14 |
2 | 49 |
3 | 172 |
4 | 604 |
5 | 2121 |
6 | 7448 |
7 | 26154 |
8 | 91841 |
9 | 322504 |
10 | 1132488 |
11 | 3976785 |
12 | 13964668 |
13 | 49037590 |
14 | 172197809 |
15 | 604680724 |
16 | 2123364868 |
17 | 7456295833 |
18 | 26183134320 |
19 | 91943310482 |
20 | 322863269121 |
21 | 1133749589840 |
22 | 3981215131600 |
23 | 13980224615841 |
24 | 49092217790004 |
25 | 172389637059934 |
[4,14,49,172,604,2121,7448,26154,91841,322504, 1132488,3976785,13964668,49037590,172197809, 604680724,2123364868,7456295833,26183134320, 91943310482,322863269121,1133749589840, 3981215131600,13980224615841,49092217790004, 172389637059934] |