n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 11 |
5 | 38 |
6 | 127 |
7 | 423 |
8 | 1423 |
9 | 4854 |
10 | 16787 |
11 | 58776 |
12 | 208001 |
13 | 742888 |
14 | 2674427 |
15 | 9694831 |
16 | 35357655 |
17 | 129644774 |
18 | 477638683 |
19 | 1767263172 |
20 | 6564120401 |
21 | 24466267000 |
22 | 91482563619 |
23 | 343059613628 |
24 | 1289904147301 |
25 | 4861946401428 |
26 | 18367353072127 |
27 | 69533550915978 |
28 | 263747951750333 |
29 | 1002242216651340 |
30 | 3814986502092275 |
[1,1,3,11,38,127,423,1423,4854,16787,58776,208001, 742888,2674427,9694831,35357655,129644774, 477638683,1767263172,6564120401,24466267000, 91482563619,343059613628,1289904147301, 4861946401428,18367353072127,69533550915978, 263747951750333,1002242216651340,3814986502092275] |