n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 17 |
4 | 45 |
5 | 112 |
6 | 276 |
7 | 671 |
8 | 1627 |
9 | 3934 |
10 | 9506 |
11 | 22957 |
12 | 55433 |
13 | 133836 |
14 | 323120 |
15 | 780091 |
16 | 1883319 |
17 | 4546746 |
18 | 10976830 |
19 | 26500425 |
20 | 63977701 |
21 | 154455848 |
22 | 372889420 |
23 | 900234711 |
24 | 2173358867 |
25 | 5246952470 |
26 | 12667263834 |
[2,6,17,45,112,276,671,1627,3934,9506,22957,55433, 133836,323120,780091,1883319,4546746,10976830, 26500425,63977701,154455848,372889420,900234711, 2173358867,5246952470,12667263834] |