n | a(n) |
---|---|
0 | 2 |
1 | 0 |
2 | 5 |
3 | 1 |
4 | 18 |
5 | 13 |
6 | 81 |
7 | 106 |
8 | 413 |
9 | 729 |
10 | 2258 |
11 | 4653 |
12 | 12833 |
13 | 28666 |
14 | 74493 |
15 | 173545 |
16 | 437346 |
17 | 1041421 |
18 | 2583089 |
19 | 6221322 |
20 | 15304541 |
21 | 37079289 |
22 | 90826994 |
23 | 220729069 |
24 | 539487297 |
25 | 1313161498 |
26 | 3205831869 |
27 | 7809748489 |
28 | 19054635650 |
29 | 46439068365 |
[2,0,5,1,18,13,81,106,413,729,2258,4653,12833, 28666,74493,173545,437346,1041421,2583089,6221322, 15304541,37079289,90826994,220729069,539487297, 1313161498,3205831869,7809748489,19054635650, 46439068365] |