n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 29 |
3 | 94 |
4 | 280 |
5 | 765 |
6 | 2023 |
7 | 5116 |
8 | 12710 |
9 | 30715 |
10 | 73381 |
11 | 172026 |
12 | 400036 |
13 | 917497 |
14 | 2091683 |
15 | 4718584 |
16 | 10594978 |
17 | 23592951 |
18 | 52341409 |
19 | 115343350 |
20 | 253405856 |
[1,7,29,94,280,765,2023,5116,12710,30715,73381, 172026,400036,917497,2091683,4718584,10594978, 23592951,52341409,115343350,253405856] |