n | a(n) |
---|---|
1 | 256 |
2 | 1076 |
3 | 4770 |
4 | 22420 |
5 | 107092 |
6 | 523218 |
7 | 2580120 |
8 | 12870804 |
9 | 64634026 |
10 | 326922108 |
11 | 1661903764 |
12 | 8491149474 |
13 | 43548443400 |
14 | 224187558716 |
15 | 1157390767538 |
16 | 5992234819668 |
17 | 31088874374020 |
18 | 161649774718450 |
19 | 841795869921768 |
[256,1076,4770,22420,107092,523218,2580120, 12870804,64634026,326922108,1661903764,8491149474, 43548443400,224187558716,1157390767538, 5992234819668,31088874374020,161649774718450, 841795869921768] |