2024 was a tetrahedral year (Tetrahedral number - Wikipedia) and, as a number, had some other interesting properties (e.g. Dan Drake 🦆: "I'm absurdly excited to learn that 2024 = 2³+3³+4…" - Mathstodon).
2025 has a slew of interesting properties (e.g. Numerical coincidences for 2025 | The Aperiodical).
In fact the pairing of 2024 and 2025 is unusual…
