n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 11 |
3 | 76 |
4 | 565 |
5 | 4406 |
6 | 35455 |
7 | 291264 |
8 | 2427113 |
9 | 20436202 |
10 | 173435251 |
11 | 1481052596 |
12 | 12711044125 |
13 | 109543953182 |
14 | 947334302951 |
15 | 8216780507176 |
16 | 71450654876625 |
17 | 622692860482514 |
18 | 5437356743763163 |
19 | 47561030194674972 |
20 | 416661242790844421 |
[1,2,11,76,565,4406,35455,291264,2427113,20436202, 173435251,1481052596,12711044125,109543953182, 947334302951,8216780507176,71450654876625, 622692860482514,5437356743763163, 47561030194674972,416661242790844421] |