n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 46 |
3 | 177 |
4 | 571 |
5 | 1632 |
6 | 4270 |
7 | 10446 |
8 | 24244 |
9 | 53942 |
10 | 115954 |
11 | 242240 |
12 | 494087 |
13 | 987503 |
14 | 1939634 |
15 | 3753007 |
16 | 7167461 |
17 | 13532608 |
18 | 25293964 |
19 | 46856332 |
20 | 86110792 |
21 | 157125052 |
22 | 284866900 |
23 | 513470464 |
24 | 920659517 |
25 | 1642844485 |
26 | 2918680214 |
27 | 5164483453 |
28 | 9104522495 |
29 | 15995633440 |
[1,9,46,177,571,1632,4270,10446,24244,53942, 115954,242240,494087,987503,1939634,3753007, 7167461,13532608,25293964,46856332,86110792, 157125052,284866900,513470464,920659517, 1642844485,2918680214,5164483453,9104522495, 15995633440] |