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A344439
a(n) = n - A206369(n).
3
0, 1, 1, 1, 1, 4, 1, 3, 2, 6, 1, 6, 1, 8, 7, 5, 1, 11, 1, 8, 9, 12, 1, 14, 4, 14, 7, 10, 1, 22, 1, 11, 13, 18, 11, 15, 1, 20, 15, 20, 1, 30, 1, 14, 17, 24, 1, 26, 6, 29, 19, 16, 1, 34, 15, 26, 21, 30, 1, 36, 1, 32, 21, 21, 17, 46, 1, 20, 25, 46, 1, 37, 1, 38, 33, 22, 17, 54, 1, 36, 20, 42, 1, 48, 21, 44, 31, 38, 1, 62
OFFSET
1,6
FORMULA
a(n) = n - A206369(n).
a(n) = A344440(n) - A344441(n).
MATHEMATICA
Array[# - # DivisorSum[#, LiouvilleLambda[#]/# &] &, 90] (* Michael De Vlieger, May 24 2021, after Enrique Pérez Herrero at A206369 *)
PROG
(PARI)
A206369(n) = sumdiv(n, d, eulerphi(n/d) * issquare(d)); \\ From A206369
A344439(n) = (n-A206369(n));
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, May 23 2021
STATUS
approved