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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 9 |
| 4 | 16 |
| 5 | 64 |
| 6 | 185 |
| 7 | 528 |
| 8 | 2109 |
| 9 | 7336 |
| 10 | 25548 |
| 11 | 96284 |
| 12 | 350352 |
| 13 | 1275030 |
| 14 | 4720164 |
| 15 | 17327263 |
| 16 | 63606177 |
| 17 | 234363052 |
| 18 | 861828278 |
| 19 | 3169215181 |
| 20 | 11663750978 |
| 21 | 42906823150 |
| 22 | 157839351044 |
| 23 | 580741120133 |
| 24 | 2136506975344 |
| 25 | 7860072868753 |
[1,4,9,16,64,185,528,2109,7336,25548,96284,350352, 1275030,4720164,17327263,63606177,234363052, 861828278,3169215181,11663750978,42906823150, 157839351044,580741120133,2136506975344, 7860072868753] |