n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 15 |
3 | 40 |
4 | 85 |
5 | 156 |
6 | 259 |
7 | 400 |
8 | 585 |
9 | 820 |
10 | 1111 |
11 | 1464 |
12 | 1885 |
13 | 2380 |
14 | 2955 |
15 | 3616 |
16 | 4369 |
17 | 5220 |
18 | 6175 |
19 | 7240 |
20 | 8421 |
21 | 9724 |
22 | 11155 |
23 | 12720 |
24 | 14425 |
25 | 16276 |
26 | 18279 |
27 | 20440 |
28 | 22765 |
29 | 25260 |
30 | 27931 |
31 | 30784 |
32 | 33825 |
33 | 37060 |
34 | 40495 |
35 | 44136 |
36 | 47989 |
37 | 52060 |
38 | 56355 |
39 | 60880 |
[1,4,15,40,85,156,259,400,585,820,1111,1464,1885, 2380,2955,3616,4369,5220,6175,7240,8421,9724, 11155,12720,14425,16276,18279,20440,22765,25260, 27931,30784,33825,37060,40495,44136,47989,52060, 56355,60880] |