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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 704 |
| 3 | 704 |
| 4 | 2176 |
| 5 | 13440 |
| 6 | 2176 |
| 7 | 30976 |
| 8 | 253312 |
| 9 | 253312 |
| 10 | 30976 |
| 11 | 166272 |
| 12 | 4615296 |
| 13 | 7946432 |
| 14 | 4615296 |
| 15 | 166272 |
| 16 | 1567936 |
| 17 | 86388160 |
| 18 | 394724320 |
| 19 | 394724320 |
| 20 | 86388160 |
| 21 | 1567936 |
| 22 | 10419200 |
| 23 | 1613838400 |
| 24 | 15491352288 |
| 25 | 39825200832 |
| 26 | 15491352288 |
[0,704,704,2176,13440,2176,30976,253312,253312, 30976,166272,4615296,7946432,4615296,166272, 1567936,86388160,394724320,394724320,86388160, 1567936,10419200,1613838400,15491352288, 39825200832,15491352288] |