n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 11 |
5 | 30 |
6 | 98 |
7 | 328 |
8 | 1193 |
9 | 4459 |
10 | 17287 |
11 | 68283 |
12 | 274726 |
13 | 1118960 |
14 | 4607578 |
15 | 19135274 |
16 | 80063095 |
17 | 337104367 |
18 | 1427274619 |
19 | 6072510001 |
20 | 25949049372 |
21 | 111319539096 |
22 | 479243000380 |
23 | 2069825207344 |
24 | 8965693829582 |
25 | 38940393808337 |
26 | 169546919220357 |
27 | 739895248735963 |
[1,2,4,11,30,98,328,1193,4459,17287,68283,274726, 1118960,4607578,19135274,80063095,337104367, 1427274619,6072510001,25949049372,111319539096, 479243000380,2069825207344,8965693829582, 38940393808337,169546919220357,739895248735963] |