n | a(n) |
---|---|
1 | 0 |
2 | 3 |
3 | 23 |
4 | 82 |
5 | 297 |
6 | 1000 |
7 | 3268 |
8 | 10534 |
9 | 33799 |
10 | 107901 |
11 | 343155 |
12 | 1090189 |
13 | 3460380 |
14 | 10970774 |
15 | 34749182 |
16 | 109991778 |
17 | 348006756 |
18 | 1101058505 |
19 | 3483105232 |
20 | 11017518803 |
[0,3,23,82,297,1000,3268,10534,33799,107901, 343155,1090189,3460380,10970774,34749182, 109991778,348006756,1101058505,3483105232, 11017518803] |