A366373 - OEIS

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A366373

a(n) = gcd(n, A332214(n)), where A332214 is the Mersenne-prime fixing variant of permutation A163511.

6

1, 1, 2, 3, 4, 1, 6, 7, 8, 9, 2, 1, 12, 1, 14, 5, 16, 1, 18, 1, 4, 21, 2, 1, 24, 1, 2, 1, 28, 1, 10, 31, 32, 3, 2, 7, 36, 1, 2, 1, 8, 1, 42, 1, 4, 15, 2, 1, 48, 7, 2, 1, 4, 1, 2, 5, 56, 3, 2, 1, 20, 1, 62, 1, 64, 1, 6, 1, 4, 3, 14, 1, 72, 1, 2, 25, 4, 1, 2, 1, 16, 27, 2, 1, 84, 5, 2, 1, 8, 1, 30, 7, 4, 93, 2, 1, 96

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OFFSET

0,3

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..8191

FORMULA

a(n) = gcd(n, A366372(n)) = gcd(A332214(n), A366372(n)).

For n >= 1, a(n) = n / A366374(n)

a(n) = A332214(n) / A366375(n).

PROG

(PARI) A366373(n) = gcd(n, A332214(n));

CROSSREFS

Cf. A332214, A366372, A366374, A366375, A366376.

Cf. also A364254, A364255, A366283.

Sequence in context: A354988 A264977 A109680 * A277826 A319653 A072438

Adjacent sequences: A366370 A366371 A366372 * A366374 A366375 A366376

KEYWORD

nonn

AUTHOR

Antti Karttunen, Oct 08 2023

STATUS

approved