OFFSET
1,1
EXAMPLE
(4+3)^(4+2) mod (4+1) = 7^6 mod 5 = 117649 mod 5 = 4, so 4 is a term.
PROG
(PARI) isok(k) = Mod(k+3, k+1)^(k+2) == k; \\ Michel Marcus, Jul 12 2021
CROSSREFS
KEYWORD
nonn
AUTHOR
Jonathan Ayres (jonathan.ayres(AT)btinternet.com), Oct 26 2001
STATUS
approved