n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 10 |
4 | 26 |
5 | 56 |
6 | 116 |
7 | 228 |
8 | 436 |
9 | 814 |
10 | 1494 |
11 | 2704 |
12 | 4840 |
13 | 8584 |
14 | 15108 |
15 | 26418 |
16 | 45938 |
17 | 79496 |
18 | 136988 |
19 | 235180 |
20 | 402420 |
21 | 686550 |
22 | 1168174 |
23 | 1982880 |
24 | 3358416 |
25 | 5676816 |
26 | 9578116 |
27 | 16133338 |
28 | 27132746 |
29 | 45565784 |
30 | 76419524 |
31 | 128006004 |
32 | 214167220 |
33 | 357935614 |
[0,4,10,26,56,116,228,436,814,1494,2704,4840,8584, 15108,26418,45938,79496,136988,235180,402420, 686550,1168174,1982880,3358416,5676816,9578116, 16133338,27132746,45565784,76419524,128006004, 214167220,357935614] |