n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 76 |
4 | 516 |
5 | 2172 |
6 | 6860 |
7 | 17904 |
8 | 40796 |
9 | 83976 |
10 | 159732 |
11 | 285220 |
12 | 483604 |
13 | 785316 |
14 | 1229436 |
15 | 1865192 |
16 | 2753580 |
17 | 3969104 |
18 | 5601636 |
19 | 7758396 |
20 | 10566052 |
21 | 14172940 |
22 | 18751404 |
23 | 24500256 |
24 | 31647356 |
25 | 40452312 |
26 | 51209300 |
27 | 64250004 |
28 | 79946676 |
[0,4,76,516,2172,6860,17904,40796,83976,159732, 285220,483604,785316,1229436,1865192,2753580, 3969104,5601636,7758396,10566052,14172940, 18751404,24500256,31647356,40452312,51209300, 64250004,79946676] |