n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 4 |
3 | 11 |
4 | 30 |
5 | 83 |
6 | 236 |
7 | 687 |
8 | 2026 |
9 | 6027 |
10 | 18008 |
11 | 53927 |
12 | 161654 |
13 | 484803 |
14 | 1454212 |
15 | 4362399 |
16 | 13086914 |
17 | 39260411 |
18 | 117780848 |
19 | 353342103 |
20 | 1060025806 |
21 | 3180076851 |
22 | 9540229916 |
23 | 28620689039 |
24 | 85862066330 |
25 | 257586198123 |
26 | 772758593416 |
27 | 2318275779207 |
28 | 6954827336486 |
29 | 20864482008227 |
30 | 62593446023348 |
31 | 187780338068607 |
32 | 563341014204274 |
33 | 1690023042611163 |
[0,1,4,11,30,83,236,687,2026,6027,18008,53927, 161654,484803,1454212,4362399,13086914,39260411, 117780848,353342103,1060025806,3180076851, 9540229916,28620689039,85862066330,257586198123, 772758593416,2318275779207,6954827336486, 20864482008227,62593446023348,187780338068607, 563341014204274,1690023042611163] |