n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 17 |
4 | 53 |
5 | 145 |
6 | 385 |
7 | 957 |
8 | 2333 |
9 | 5493 |
10 | 12741 |
11 | 28941 |
12 | 65049 |
13 | 144225 |
14 | 317229 |
15 | 691457 |
16 | 1497901 |
17 | 3224145 |
18 | 6906969 |
19 | 14726701 |
20 | 31282421 |
21 | 66211253 |
22 | 139720445 |
23 | 294007373 |
24 | 617154865 |
25 | 1292516577 |
26 | 2701451621 |
27 | 5635565761 |
28 | 11736442005 |
29 | 24403092657 |
30 | 50666528209 |
[0,1,5,17,53,145,385,957,2333,5493,12741,28941, 65049,144225,317229,691457,1497901,3224145, 6906969,14726701,31282421,66211253,139720445, 294007373,617154865,1292516577,2701451621, 5635565761,11736442005,24403092657,50666528209] |