I gave the table of inputs and outputs to both Gemini 3.0 flash and GPT 5.2 instant and they were stumped.
https://t3.chat/share/j2tnfwwful https://t3.chat/share/k1xhgisrw1
What is the function supposed to be? It’s not Celsius to Farenheit. (2C=35F, 206C=406F, …)
When I was writing this, GPT 5.1 was the latest and it got it right away. It’s the sequence of prime numbers fwiw :)