n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 8 |
3 | 22 |
4 | 55 |
5 | 143 |
6 | 349 |
7 | 885 |
8 | 2138 |
9 | 5356 |
10 | 12890 |
11 | 32092 |
12 | 77178 |
13 | 191530 |
14 | 460934 |
15 | 1141888 |
16 | 2751551 |
17 | 6809421 |
18 | 16431189 |
19 | 40633227 |
20 | 98175341 |
21 | 242626935 |
22 | 586867463 |
23 | 1449457735 |
24 | 3509084995 |
25 | 8661201115 |
26 | 20982916461 |
27 | 51755457003 |
[1,3,8,22,55,143,349,885,2138,5356,12890,32092, 77178,191530,460934,1141888,2751551,6809421, 16431189,40633227,98175341,242626935,586867463, 1449457735,3509084995,8661201115,20982916461, 51755457003] |