n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 30 |
3 | 126 |
4 | 498 |
5 | 1982 |
6 | 7854 |
7 | 31014 |
8 | 122562 |
9 | 484422 |
10 | 1914254 |
11 | 7564542 |
12 | 29893554 |
13 | 118131966 |
14 | 466827678 |
15 | 1844789414 |
16 | 7290156162 |
17 | 28808903814 |
18 | 113845717662 |
19 | 449890341534 |
20 | 1777856189330 |
21 | 7025651266782 |
22 | 27763649373966 |
23 | 109715127592326 |
24 | 433567254075330 |
25 | 1713351367231142 |
26 | 6770744053574286 |
[1,6,30,126,498,1982,7854,31014,122562,484422, 1914254,7564542,29893554,118131966,466827678, 1844789414,7290156162,28808903814,113845717662, 449890341534,1777856189330,7025651266782, 27763649373966,109715127592326,433567254075330, 1713351367231142,6770744053574286] |