? That continues the pattern

Question

What is the patten of numbers missing the last number7,49,16,256,223

Answer 1

7^2 = 49

16^2 = 256

223^2 = 49729

maybe 6th term = 49,729

one pattern is pairs of a number and its square as the 2nd term of the pair

7, 7^2, 16, 16^2, 223, 223^2, ...

7, 49, 16, 256, 223, 49729, ...

endless patterns are possible