n | a(n) |
---|---|
0 | 1 |
1 | 8 |
2 | 40 |
3 | 152 |
4 | 488 |
5 | 1392 |
6 | 3640 |
7 | 8896 |
8 | 20584 |
9 | 45512 |
10 | 96816 |
11 | 199200 |
12 | 398072 |
13 | 775216 |
14 | 1475264 |
15 | 2749776 |
16 | 5029736 |
17 | 9043344 |
18 | 16005352 |
19 | 27918304 |
20 | 48047280 |
21 | 81661504 |
22 | 137183136 |
23 | 227952960 |
24 | 374924152 |
25 | 610743224 |
26 | 985891568 |
27 | 1577869784 |
28 | 2504850112 |
29 | 3945854640 |
30 | 6170415888 |
[1,8,40,152,488,1392,3640,8896,20584,45512,96816, 199200,398072,775216,1475264,2749776,5029736, 9043344,16005352,27918304,48047280,81661504, 137183136,227952960,374924152,610743224,985891568, 1577869784,2504850112,3945854640,6170415888] |