The number of Plane Meanders
- Open meanders:
- Closed meanders:
- Semi meanders:
| Number of open meanders | A005316 |
| Number of closed meanders | A005315 |
| Number of semi meanders | A000682 |
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| Number of open meanders | A005316 |
| Number of closed meanders | A005315 |
| Number of semi meanders | A000682 |