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A341059
Numbers k such that A340179(k) is a square.
2
1, 2, 3, 4, 6, 8, 11, 12, 15, 17, 27, 48, 92, 6219, 24310
OFFSET
1,2
EXAMPLE
a(6) = 8 is a term because A340179(8) = 4 = 2^2.
MAPLE
f:= proc(n) local C, s, c;
C:=select(t -> igcd(t, n) = 1, [$1..n-1]);
s:= convert(C, `+`);
add(s mod c, c = C)
end proc:
select(t -> issqr(f(t)), [$1..7000]);
CROSSREFS
KEYWORD
nonn,more
AUTHOR
J. M. Bergot and Robert Israel, Feb 04 2021
STATUS
approved