n | a(n) |
---|---|
0 | 0 |
1 | 3 |
2 | 12 |
3 | 34 |
4 | 98 |
5 | 256 |
6 | 654 |
7 | 1625 |
8 | 3964 |
9 | 9533 |
10 | 22662 |
11 | 53373 |
12 | 124728 |
13 | 289572 |
14 | 668514 |
15 | 1535869 |
16 | 3513614 |
17 | 8008090 |
18 | 18191184 |
19 | 41200568 |
20 | 93064834 |
21 | 209710139 |
22 | 471520566 |
23 | 1058065647 |
24 | 2369890254 |
25 | 5299215579 |
26 | 11830941840 |
27 | 26375563624 |
28 | 58722396932 |
29 | 130576680919 |
[0,3,12,34,98,256,654,1625,3964,9533,22662,53373, 124728,289572,668514,1535869,3513614,8008090, 18191184,41200568,93064834,209710139,471520566, 1058065647,2369890254,5299215579,11830941840, 26375563624,58722396932,130576680919] |