n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 4 |
4 | 6 |
5 | 16 |
6 | 29 |
7 | 67 |
8 | 132 |
9 | 288 |
10 | 588 |
11 | 1253 |
12 | 2597 |
13 | 5480 |
14 | 11430 |
15 | 24020 |
16 | 50233 |
17 | 105383 |
18 | 220632 |
19 | 462528 |
20 | 968808 |
21 | 2030377 |
22 | 4253641 |
23 | 8913436 |
24 | 18675174 |
25 | 39131464 |
26 | 81989909 |
27 | 171795691 |
28 | 359958780 |
29 | 754224480 |
30 | 1580315220 |
31 | 3311234189 |
[0,1,1,4,6,16,29,67,132,288,588,1253,2597,5480, 11430,24020,50233,105383,220632,462528,968808, 2030377,4253641,8913436,18675174,39131464, 81989909,171795691,359958780,754224480,1580315220, 3311234189] |