n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 12 |
4 | 33 |
5 | 91 |
6 | 249 |
7 | 677 |
8 | 1842 |
9 | 5007 |
10 | 13613 |
11 | 37004 |
12 | 100587 |
13 | 273426 |
14 | 743250 |
15 | 2020363 |
16 | 5491918 |
17 | 14928581 |
18 | 40580092 |
19 | 110308128 |
20 | 299848580 |
21 | 815072948 |
22 | 2215597985 |
23 | 6022619743 |
24 | 16371177808 |
25 | 44501475147 |
26 | 120967551231 |
27 | 328823896346 |
28 | 893836022201 |
29 | 2429698216773 |
30 | 6604604511293 |
31 | 17953176427208 |
[1,1,4,12,33,91,249,677,1842,5007,13613,37004, 100587,273426,743250,2020363,5491918,14928581, 40580092,110308128,299848580,815072948,2215597985, 6022619743,16371177808,44501475147,120967551231, 328823896346,893836022201,2429698216773, 6604604511293,17953176427208] |