n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 2 |
4 | 2 |
5 | 4 |
6 | 9 |
7 | 15 |
8 | 37 |
9 | 88 |
10 | 191 |
11 | 729 |
12 | 2246 |
13 | 6555 |
14 | 31434 |
15 | 144150 |
16 | 601688 |
17 | 3970089 |
18 | 24322158 |
19 | 135488789 |
20 | 1251604698 |
21 | 10410417129 |
22 | 79632436378 |
23 | 997602199170 |
24 | 11483571472544 |
25 | 120898733308159 |
26 | 2073714604283068 |
27 | 32605974669636948 |
[1,1,2,2,2,4,9,15,37,88,191,729,2246,6555,31434, 144150,601688,3970089,24322158,135488789, 1251604698,10410417129,79632436378,997602199170, 11483571472544,120898733308159,2073714604283068, 32605974669636948] |