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A373851
a(n) = 1 if A276085(n) is a multiple of bigomega(n), otherwise 0, where bigomega (A001222) and A276085 are fully additive with a(p) = 1 and a(p) = p#/p respectively.
4
1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1
OFFSET
1
LINKS
PROG
(PARI)
A276085(n) = { my(f = factor(n)); sum(k=1, #f~, f[k, 2]*prod(i=1, primepi(f[k, 1]-1), prime(i))); };
A373851(n) = if(1==n, n, !(A276085(n)%bigomega(n)));
CROSSREFS
Characteristic function of A373852.
Sequence in context: A344885 A345064 A076699 * A142720 A196308 A091862
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jun 20 2024
STATUS
approved