n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 13 |
3 | 51 |
4 | 201 |
5 | 783 |
6 | 3039 |
7 | 11763 |
8 | 45481 |
9 | 175803 |
10 | 679779 |
11 | 2630367 |
12 | 10187659 |
13 | 39500373 |
14 | 153329913 |
15 | 595883763 |
16 | 2318471289 |
17 | 9030982491 |
18 | 35216266947 |
19 | 137469149451 |
20 | 537152523711 |
21 | 2100857828193 |
22 | 8223917499477 |
23 | 32219655346719 |
24 | 126328429601451 |
25 | 495676719721953 |
26 | 1946227355491909 |
[1,3,13,51,201,783,3039,11763,45481,175803,679779, 2630367,10187659,39500373,153329913,595883763, 2318471289,9030982491,35216266947,137469149451, 537152523711,2100857828193,8223917499477, 32219655346719,126328429601451,495676719721953, 1946227355491909] |