

A273553


Numbers n such that n! is the sum of a square and a nonnegative cube.


1




OFFSET

1,3


COMMENTS

Numbers n such that n! = x^2 + y^3 where x, y are integers and y >= 0, is soluble.


LINKS



EXAMPLE

4 is a term because 4! = 4^2 + 2^3.
19 is a term because 19! = 345427200^2 + 132480^3.
21 is a term because 21! = 6389296200^2 + 2173500^3.


CROSSREFS



KEYWORD

nonn,more


AUTHOR



STATUS

approved



