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A348417
Number of coprime squares modulo A081754(n): a(n) = A046073(A081754(n)).
1
1, 1, 1, 1, 1, 3, 1, 3, 5, 1, 3, 3, 9, 3, 5, 11, 1, 9, 3, 15, 5, 3, 9, 3, 21, 5, 11, 23, 21, 9, 3, 9, 29, 15, 9, 5, 33, 11, 35, 3, 9, 15, 39, 27, 41, 3, 21, 5, 11, 15, 23, 21, 15, 51, 53, 9, 9, 29, 55, 15, 9, 63, 21, 65, 5, 27, 33, 11, 69, 23, 35, 21, 75, 9, 15
OFFSET
1,6
COMMENTS
Odd terms in A046073.
LINKS
EXAMPLE
The number of coprime squares modulo A081754(61..64) = 131, 132, 133 and 134 is 65, 5, 27 and 33 respectively, so a(61..64) = 65, 5, 27 and 33.
PROG
(PARI) A046073(n) = my(z=znstar(n)); z[1]/2^(#z[2])
up_to_lim(n) = my(v=vector(n, k, A046073(k))); select(x->(x%2), v)
CROSSREFS
Sequence in context: A118125 A143732 A130465 * A356663 A272120 A194437
KEYWORD
nonn
AUTHOR
Jianing Song, Oct 18 2021
STATUS
approved