A366285 a(n) = A366275(n) / gcd(n, A366275(n)), where A366275 is the Cat's tongue permutation.

1, 2, 2, 1, 2, 9, 1, 5, 2, 3, 9, 15, 1, 25, 5, 7, 2, 81, 3, 45, 9, 25, 15, 21, 1, 5, 25, 35, 5, 49, 7, 11, 2, 81, 81, 27, 3, 225, 45, 21, 9, 375, 25, 105, 15, 49, 21, 33, 1, 625, 5, 175, 25, 245, 35, 1, 5, 343, 49, 77, 7, 121, 11, 13, 2, 729, 81, 405, 81, 225, 27, 189, 3, 1125, 225, 21, 45, 63, 21, 99, 9, 625, 375, 525

Offset

0,2

Comments

Denominator of n / A366275(n).

Links

Antti Karttunen, Table of n, a(n) for n = 0..16383

Index entries for sequences related to binary expansion of n

Formula

a(n) = A366275(n) / A366283(n) = A366275(n) / gcd(n, A366275(n))

Prog

(PARI) A366285(n) = { my(u=A366275(n)); (u/gcd(n, u)); }; \\ Uses the program given in A366275.

Crossrefs

Cf. A057889, A163511, A366275, A366282, A366283, A366284 (numerators), A366286 (rgs-transform).

Cf. also A364492.

Sequence in context: A192395 A014243 A366375 * A364492 A124839 A336846

Adjacent sequences: A366282 A366283 A366284 * A366286 A366287 A366288

Keyword

nonn,frac

Author

Antti Karttunen, Oct 07 2023

Status

approved