n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 12 |
4 | 30 |
5 | 78 |
6 | 184 |
7 | 448 |
8 | 1033 |
9 | 2361 |
10 | 5292 |
11 | 11676 |
12 | 25382 |
13 | 54470 |
14 | 115508 |
15 | 242132 |
16 | 502520 |
17 | 1032632 |
18 | 2103172 |
19 | 4246948 |
20 | 8507968 |
21 | 16915536 |
22 | 33391788 |
23 | 65470332 |
24 | 127539321 |
25 | 246928233 |
26 | 475274592 |
27 | 909658536 |
28 | 1731703788 |
29 | 3279644604 |
30 | 6180528236 |
[1,1,4,12,30,78,184,448,1033,2361,5292,11676, 25382,54470,115508,242132,502520,1032632,2103172, 4246948,8507968,16915536,33391788,65470332, 127539321,246928233,475274592,909658536, 1731703788,3279644604,6180528236] |