Escape RoomRiddle #1391
A note on the cellar door: 1, 4, 9, 61, 52, 63, __. The two-digit code fills the blank. What is it?
Hint: The first three look very familiar. Try reading the later ones from right to left.
Answer
94
These are the square numbers written backward: 1, 4, 9, 16, 25, 36, so the next is 49 backward, 94.
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