n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 16 |
4 | 58 |
5 | 624 |
6 | 1520 |
7 | 8346 |
8 | 9317 |
9 | 31221 |
10 | 240048 |
11 | 297624 |
12 | 778144 |
13 | 2757880 |
14 | 4670769 |
15 | 7654224 |
16 | 24206384 |
17 | 54806653 |
18 | 76521364 |
19 | 260393208 |
20 | 846807152 |
21 | 19488644316 |
22 | 58671741024 |
23 | 105968380189 |
24 | 140689013614 |
25 | 325374626148 |
26 | 535755688021 |
27 | 1404720439053 |
28 | 3116427665348 |
29 | 3883018238329 |
30 | 16166305650060 |
[1,4,16,58,624,1520,8346,9317,31221,240048,297624, 778144,2757880,4670769,7654224,24206384,54806653, 76521364,260393208,846807152,19488644316, 58671741024,105968380189,140689013614, 325374626148,535755688021,1404720439053, 3116427665348,3883018238329,16166305650060] |