OFFSET
1,1
COMMENTS
LINKS
M. F. Hasler, in reply to Éric Angelini, 2019 must be read here as 201^9, SeqFan list, Nov. 21, 2019.
PROG
(PARI) select( t->setsearch(Set(digits((t\10)^(t%10))), t%10), [0..9999])
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Eric Angelini and M. F. Hasler, Nov 21 2019
STATUS
approved