n | a(n) |
---|---|
0 | 0 |
1 | 4 |
2 | 30 |
3 | 120 |
4 | 340 |
5 | 780 |
6 | 1554 |
7 | 2800 |
8 | 4680 |
9 | 7380 |
10 | 11110 |
11 | 16104 |
12 | 22620 |
13 | 30940 |
14 | 41370 |
15 | 54240 |
16 | 69904 |
17 | 88740 |
18 | 111150 |
19 | 137560 |
20 | 168420 |
21 | 204204 |
22 | 245410 |
23 | 292560 |
24 | 346200 |
25 | 406900 |
26 | 475254 |
27 | 551880 |
28 | 637420 |
29 | 732540 |
30 | 837930 |
31 | 954304 |
32 | 1082400 |
33 | 1222980 |
34 | 1376830 |
35 | 1544760 |
36 | 1727604 |
[0,4,30,120,340,780,1554,2800,4680,7380,11110, 16104,22620,30940,41370,54240,69904,88740,111150, 137560,168420,204204,245410,292560,346200,406900, 475254,551880,637420,732540,837930,954304,1082400, 1222980,1376830,1544760,1727604] |