n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 11 |
4 | 32 |
5 | 92 |
6 | 271 |
7 | 814 |
8 | 2464 |
9 | 7508 |
10 | 23024 |
11 | 70952 |
12 | 219503 |
13 | 681358 |
14 | 2121116 |
15 | 6619571 |
16 | 20703040 |
17 | 64873328 |
18 | 203625604 |
19 | 640109128 |
20 | 2014951552 |
21 | 6350490808 |
22 | 20037015200 |
23 | 63284778256 |
24 | 200063948527 |
25 | 633007850942 |
26 | 2004431426716 |
27 | 6351693835169 |
28 | 20141013776384 |
[1,2,4,11,32,92,271,814,2464,7508,23024,70952, 219503,681358,2121116,6619571,20703040,64873328, 203625604,640109128,2014951552,6350490808, 20037015200,63284778256,200063948527,633007850942, 2004431426716,6351693835169,20141013776384] |