What is the next number in this series? 18, 46, 94, 63, 52, ?

Answer 1

They are backward multiples of square root integers.

9x9 = 81
8x8 = 64
7x7 = 49
6x6 = 36
5x5 = 25
4x4 = 16
So next number is 61

Comments

What is next number 61,52,63,94,46,18 ,?

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1,121....
Means 100,121...

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441,961,691, ....

Answer 2

One solution is 61, 9, 4, 1.
Another solution is 358, 1476, 4099,....