The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1926 |
| 2 | 7848 |
| 3 | 25650 |
| 4 | 71964 |
| 5 | 180054 |
| 6 | 411696 |
| 7 | 874998 |
| 8 | 1750140 |
| 9 | 3325410 |
| 10 | 6046344 |
| 11 | 10581246 |
| 12 | 17906868 |
| 13 | 29418570 |
| 14 | 47069856 |
| 15 | 73546794 |
| 16 | 112483476 |
| 17 | 168725358 |
| 18 | 248648040 |
| 19 | 360539802 |
| 20 | 515057004 |
| 21 | 725762286 |
| 22 | 1009756368 |
| 23 | 1388415150 |
[1926,7848,25650,71964,180054,411696,874998, 1750140,3325410,6046344,10581246,17906868, 29418570,47069856,73546794,112483476,168725358, 248648040,360539802,515057004,725762286, 1009756368,1388415150] |