n | a(n) |
---|---|
1 | 4 |
2 | 75 |
3 | 604 |
4 | 3150 |
5 | 12480 |
6 | 40788 |
7 | 115500 |
8 | 292578 |
9 | 677820 |
10 | 1459315 |
11 | 2954952 |
12 | 5679700 |
13 | 10438272 |
14 | 18449760 |
15 | 31511880 |
16 | 52213596 |
17 | 84206100 |
18 | 132543411 |
19 | 204105220 |
20 | 308116050 |
21 | 456776320 |
22 | 666022500 |
23 | 956435220 |
24 | 1354315950 |
25 | 1892954700 |
26 | 2614113099 |
27 | 3569749200 |
28 | 4824012424 |
[4,75,604,3150,12480,40788,115500,292578,677820, 1459315,2954952,5679700,10438272,18449760, 31511880,52213596,84206100,132543411,204105220, 308116050,456776320,666022500,956435220, 1354315950,1892954700,2614113099,3569749200, 4824012424] |