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| n | a(n) |
|---|---|
| 0 | -7 |
| 1 | -29 |
| 2 | -67 |
| 3 | -185 |
| 4 | -475 |
| 5 | -1253 |
| 6 | -3271 |
| 7 | -8573 |
| 8 | -22435 |
| 9 | -58745 |
| 10 | -153787 |
| 11 | -402629 |
| 12 | -1054087 |
| 13 | -2759645 |
| 14 | -7224835 |
| 15 | -18914873 |
| 16 | -49519771 |
| 17 | -129644453 |
| 18 | -339413575 |
| 19 | -888596285 |
| 20 | -2326375267 |
| 21 | -6090529529 |
| 22 | -15945213307 |
| 23 | -41745110405 |
| 24 | -109290117895 |
| 25 | -286125243293 |
[-7,-29,-67,-185,-475,-1253,-3271,-8573,-22435, -58745,-153787,-402629,-1054087,-2759645,-7224835, -18914873,-49519771,-129644453,-339413575, -888596285,-2326375267,-6090529529,-15945213307, -41745110405,-109290117895,-286125243293] |