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A020496 as a simple table
| n | a(n) |
|---|
| 4 | 1 |
| 5 | 4 |
| 6 | 19 |
| 7 | 55 |
| 8 | 181 |
| 9 | 461 |
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Last modified September 20 06:26 EDT 2024. Contains 376051 sequences. (Running on oeis4.)