n | a(n) |
---|---|
13 | 1 |
14 | 6 |
15 | 36 |
16 | 199 |
17 | 984 |
18 | 4433 |
19 | 18257 |
20 | 69390 |
21 | 245105 |
22 | 810418 |
23 | 2522646 |
24 | 7432876 |
25 | 20825678 |
26 | 55717629 |
27 | 142862730 |
28 | 352212459 |
29 | 837368658 |
30 | 1924861589 |
31 | 4288250970 |
32 | 9278750495 |
33 | 19537503288 |
34 | 40103712085 |
35 | 80377128541 |
[1,6,36,199,984,4433,18257,69390,245105,810418, 2522646,7432876,20825678,55717629,142862730, 352212459,837368658,1924861589,4288250970, 9278750495,19537503288,40103712085,80377128541] |