n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 4 |
6 | 19 |
7 | 78 |
8 | 217 |
9 | 496 |
10 | 3961 |
11 | 25442 |
12 | 105963 |
13 | 349504 |
14 | 3908059 |
15 | 34227438 |
16 | 190065457 |
17 | 819786496 |
18 | 11785687921 |
19 | 130746521282 |
20 | 907546301523 |
21 | 4835447317504 |
22 | 84965187064099 |
23 | 1141012634368398 |
24 | 9504085749177097 |
25 | 60283564499562496 |
26 | 1251854782837499881 |
[1,1,1,2,3,4,19,78,217,496,3961,25442,105963, 349504,3908059,34227438,190065457,819786496, 11785687921,130746521282,907546301523, 4835447317504,84965187064099,1141012634368398, 9504085749177097,60283564499562496, 1251854782837499881] |