n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 4 |
5 | 11 |
6 | 34 |
7 | 107 |
8 | 368 |
9 | 1284 |
10 | 4654 |
11 | 17072 |
12 | 63599 |
13 | 238590 |
14 | 901970 |
15 | 3426575 |
16 | 13079254 |
17 | 50107908 |
18 | 192622051 |
19 | 742624231 |
20 | 2870671949 |
21 | 11123060677 |
22 | 43191857687 |
23 | 168047007727 |
24 | 654999700402 |
25 | 2557227044763 |
26 | 9999088822074 |
27 | 39153010938486 |
28 | 153511100594602 |
29 | 602621953061977 |
30 | 2368347037571251 |
31 | 9317706529987949 |
32 | 36695016991712878 |
[0,0,1,4,11,34,107,368,1284,4654,17072,63599, 238590,901970,3426575,13079254,50107908,192622051, 742624231,2870671949,11123060677,43191857687, 168047007727,654999700402,2557227044763, 9999088822074,39153010938486,153511100594602, 602621953061977,2368347037571251,9317706529987949, 36695016991712878] |