n | a(n) |
---|---|
0 | 1 |
1 | 15 |
2 | 72 |
3 | 220 |
4 | 525 |
5 | 1071 |
6 | 1960 |
7 | 3312 |
8 | 5265 |
9 | 7975 |
10 | 11616 |
11 | 16380 |
12 | 22477 |
13 | 30135 |
14 | 39600 |
15 | 51136 |
16 | 65025 |
17 | 81567 |
18 | 101080 |
19 | 123900 |
20 | 150381 |
21 | 180895 |
22 | 215832 |
23 | 255600 |
24 | 300625 |
25 | 351351 |
26 | 408240 |
27 | 471772 |
28 | 542445 |
29 | 620775 |
30 | 707296 |
31 | 802560 |
32 | 907137 |
33 | 1021615 |
[1,15,72,220,525,1071,1960,3312,5265,7975,11616, 16380,22477,30135,39600,51136,65025,81567,101080, 123900,150381,180895,215832,255600,300625,351351, 408240,471772,542445,620775,707296,802560,907137, 1021615] |