n | a(n) |
---|---|
1 | 4 |
2 | 16 |
3 | 43 |
4 | 128 |
5 | 416 |
6 | 1287 |
7 | 3996 |
8 | 12594 |
9 | 39539 |
10 | 123964 |
11 | 390822 |
12 | 1231115 |
13 | 3878694 |
14 | 12237024 |
15 | 38612549 |
16 | 121853840 |
17 | 384703976 |
18 | 1214725443 |
19 | 3835937346 |
20 | 12115116500 |
21 | 38266545975 |
22 | 120874923256 |
23 | 381838415718 |
24 | 1206261483091 |
25 | 3810809904904 |
[4,16,43,128,416,1287,3996,12594,39539,123964, 390822,1231115,3878694,12237024,38612549, 121853840,384703976,1214725443,3835937346, 12115116500,38266545975,120874923256,381838415718, 1206261483091,3810809904904] |