n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 3 |
4 | 16 |
5 | 67 |
6 | 204 |
7 | 546 |
8 | 1268 |
9 | 2714 |
10 | 5348 |
11 | 9965 |
12 | 17580 |
13 | 29781 |
14 | 48520 |
15 | 76660 |
16 | 117624 |
17 | 176196 |
18 | 257976 |
19 | 370503 |
20 | 522456 |
21 | 725175 |
22 | 991540 |
23 | 1337974 |
24 | 1782924 |
25 | 2349438 |
26 | 3063164 |
27 | 3955601 |
28 | 5061524 |
29 | 6423017 |
30 | 8086224 |
31 | 10106280 |
32 | 12543280 |
33 | 15468232 |
34 | 18958128 |
35 | 23103051 |
36 | 28000224 |
37 | 33762411 |
38 | 40510812 |
39 | 48384906 |
40 | 57534052 |
[0,0,3,16,67,204,546,1268,2714,5348,9965,17580, 29781,48520,76660,117624,176196,257976,370503, 522456,725175,991540,1337974,1782924,2349438, 3063164,3955601,5061524,6423017,8086224,10106280, 12543280,15468232,18958128,23103051,28000224, 33762411,40510812,48384906,57534052] |