OFFSET
1,2
COMMENTS
a(14) > 30000. - Michel Marcus, Jan 30 2023
EXAMPLE
PROG
(PARI) isok(n) = issquare((sqrtint(n!-1)+1)^2-n!); \\ Michel Marcus, Jan 30 2023
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Alexander R. Povolotsky, Jan 29 2023
STATUS
approved