n | a(n) |
---|---|
0 | 0 |
1 | 15 |
2 | 90 |
3 | 315 |
4 | 840 |
5 | 1890 |
6 | 3780 |
7 | 6930 |
8 | 11880 |
9 | 19305 |
10 | 30030 |
11 | 45045 |
12 | 65520 |
13 | 92820 |
14 | 128520 |
15 | 174420 |
16 | 232560 |
17 | 305235 |
18 | 395010 |
19 | 504735 |
20 | 637560 |
21 | 796950 |
22 | 986700 |
23 | 1210950 |
24 | 1474200 |
25 | 1781325 |
26 | 2137590 |
27 | 2548665 |
28 | 3020640 |
29 | 3560040 |
30 | 4173840 |
31 | 4869480 |
32 | 5654880 |
33 | 6538455 |
34 | 7529130 |
[0,15,90,315,840,1890,3780,6930,11880,19305,30030, 45045,65520,92820,128520,174420,232560,305235, 395010,504735,637560,796950,986700,1210950, 1474200,1781325,2137590,2548665,3020640,3560040, 4173840,4869480,5654880,6538455,7529130] |