n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 7 |
4 | 29 |
5 | 71 |
6 | 355 |
7 | 925 |
8 | 4425 |
9 | 13276 |
10 | 60111 |
11 | 184757 |
12 | 856357 |
13 | 2704157 |
14 | 12137147 |
15 | 40367461 |
16 | 176999505 |
17 | 601080391 |
18 | 2616894901 |
19 | 9075135301 |
20 | 38884056181 |
21 | 138014377810 |
22 | 583674491643 |
23 | 2104098963721 |
24 | 8823912454489 |
25 | 32247616479976 |
26 | 133998376789707 |
[1,3,7,29,71,355,925,4425,13276,60111,184757, 856357,2704157,12137147,40367461,176999505, 601080391,2616894901,9075135301,38884056181, 138014377810,583674491643,2104098963721, 8823912454489,32247616479976,133998376789707] |