n | a(n) |
---|---|
1 | 6 |
2 | 60 |
3 | 330 |
4 | 1224 |
5 | 3510 |
6 | 8436 |
7 | 17850 |
8 | 34320 |
9 | 61254 |
10 | 103020 |
11 | 165066 |
12 | 254040 |
13 | 377910 |
14 | 546084 |
15 | 769530 |
16 | 1060896 |
17 | 1434630 |
18 | 1907100 |
19 | 2496714 |
20 | 3224040 |
21 | 4111926 |
22 | 5185620 |
23 | 6472890 |
24 | 8004144 |
25 | 9812550 |
26 | 11934156 |
27 | 14408010 |
28 | 17276280 |
29 | 20584374 |
30 | 24381060 |
[6,60,330,1224,3510,8436,17850,34320,61254,103020, 165066,254040,377910,546084,769530,1060896, 1434630,1907100,2496714,3224040,4111926,5185620, 6472890,8004144,9812550,11934156,14408010, 17276280,20584374,24381060] |