n | a(n) |
---|---|
-1 | 0 |
0 | 0 |
1 | 6 |
2 | 42 |
3 | 156 |
4 | 420 |
5 | 930 |
6 | 1806 |
7 | 3192 |
8 | 5256 |
9 | 8190 |
10 | 12210 |
11 | 17556 |
12 | 24492 |
13 | 33306 |
14 | 44310 |
15 | 57840 |
16 | 74256 |
17 | 93942 |
18 | 117306 |
19 | 144780 |
20 | 176820 |
21 | 213906 |
22 | 256542 |
23 | 305256 |
24 | 360600 |
25 | 423150 |
26 | 493506 |
27 | 572292 |
28 | 660156 |
29 | 757770 |
30 | 865830 |
31 | 985056 |
32 | 1116192 |
33 | 1260006 |
34 | 1417290 |
35 | 1588860 |
[0,0,6,42,156,420,930,1806,3192,5256,8190,12210, 17556,24492,33306,44310,57840,74256,93942,117306, 144780,176820,213906,256542,305256,360600,423150, 493506,572292,660156,757770,865830,985056,1116192, 1260006,1417290,1588860] |