n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 7 |
3 | 42 |
4 | 242 |
5 | 1375 |
6 | 7773 |
7 | 43876 |
8 | 247684 |
9 | 1399293 |
10 | 7913955 |
11 | 44812878 |
12 | 254064726 |
13 | 1442131899 |
14 | 8195232633 |
15 | 46621424520 |
16 | 265490365448 |
17 | 1513290869881 |
18 | 8633347134975 |
19 | 49293941140402 |
20 | 281670686307130 |
[0,1,7,42,242,1375,7773,43876,247684,1399293, 7913955,44812878,254064726,1442131899,8195232633, 46621424520,265490365448,1513290869881, 8633347134975,49293941140402,281670686307130] |