n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 10 |
4 | 26 |
5 | 56 |
6 | 138 |
7 | 299 |
8 | 726 |
9 | 1686 |
10 | 4158 |
11 | 10130 |
12 | 25678 |
13 | 64725 |
14 | 166538 |
15 | 428456 |
16 | 1112226 |
17 | 2888604 |
18 | 7533750 |
19 | 19653903 |
20 | 51367462 |
21 | 134277878 |
22 | 351284164 |
23 | 919080550 |
24 | 2405427698 |
25 | 6295780309 |
26 | 16480373968 |
27 | 43141303978 |
28 | 112939105716 |
29 | 295664584064 |
30 | 774042041090 |
31 | 2026429360115 |
32 | 5305210333758 |
[1,4,10,26,56,138,299,726,1686,4158,10130,25678, 64725,166538,428456,1112226,2888604,7533750, 19653903,51367462,134277878,351284164,919080550, 2405427698,6295780309,16480373968,43141303978, 112939105716,295664584064,774042041090, 2026429360115,5305210333758] |