n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 4 |
4 | 11 |
5 | 24 |
6 | 54 |
7 | 127 |
8 | 297 |
9 | 689 |
10 | 1600 |
11 | 3721 |
12 | 8652 |
13 | 20112 |
14 | 46753 |
15 | 108689 |
16 | 252673 |
17 | 587392 |
18 | 1365519 |
19 | 3174448 |
20 | 7379698 |
21 | 17155715 |
22 | 39882197 |
23 | 92714861 |
24 | 215535904 |
25 | 501060185 |
26 | 1164823608 |
27 | 2707886360 |
28 | 6295072049 |
29 | 14634267033 |
30 | 34020543361 |
[1,1,1,4,11,24,54,127,297,689,1600,3721,8652, 20112,46753,108689,252673,587392,1365519,3174448, 7379698,17155715,39882197,92714861,215535904, 501060185,1164823608,2707886360,6295072049, 14634267033,34020543361] |