n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 12 |
3 | 36 |
4 | 92 |
5 | 220 |
6 | 508 |
7 | 1108 |
8 | 2332 |
9 | 4776 |
10 | 9492 |
11 | 18420 |
12 | 35036 |
13 | 65324 |
14 | 119708 |
15 | 216044 |
16 | 384204 |
17 | 674236 |
18 | 1168968 |
19 | 2003460 |
20 | 3397300 |
21 | 5704148 |
22 | 9487740 |
23 | 15642676 |
24 | 25577900 |
25 | 41495032 |
26 | 66817812 |
27 | 106837112 |
28 | 169677372 |
29 | 267755836 |
30 | 419948980 |
31 | 654799316 |
32 | 1015276412 |
33 | 1565765892 |
[1,4,12,36,92,220,508,1108,2332,4776,9492,18420, 35036,65324,119708,216044,384204,674236,1168968, 2003460,3397300,5704148,9487740,15642676,25577900, 41495032,66817812,106837112,169677372,267755836, 419948980,654799316,1015276412,1565765892] |