n | a(n) |
---|---|
1 | 4 |
2 | 3 |
3 | 19 |
4 | 51 |
5 | 61 |
6 | 230 |
7 | 641 |
8 | 960 |
9 | 3746 |
10 | 9339 |
11 | 16659 |
12 | 60981 |
13 | 137870 |
14 | 288484 |
15 | 962239 |
16 | 2106198 |
17 | 4825844 |
18 | 14944563 |
19 | 32681302 |
20 | 79714689 |
21 | 232184355 |
22 | 513198469 |
23 | 1304385350 |
24 | 3611732771 |
25 | 8129991862 |
26 | 21132067461 |
27 | 56282787035 |
28 | 129448737499 |
[4,3,19,51,61,230,641,960,3746,9339,16659,60981, 137870,288484,962239,2106198,4825844,14944563, 32681302,79714689,232184355,513198469,1304385350, 3611732771,8129991862,21132067461,56282787035, 129448737499] |