The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A331731 Odd part of A331595(n), where A331595(n) = gcd(A122111(n), A241909(n)). 4
 1, 1, 1, 3, 1, 3, 1, 5, 3, 3, 1, 5, 1, 3, 9, 7, 1, 15, 1, 5, 9, 3, 1, 7, 3, 3, 5, 5, 1, 15, 1, 11, 9, 3, 9, 7, 1, 3, 9, 7, 1, 15, 1, 5, 25, 3, 1, 11, 3, 45, 9, 5, 1, 7, 27, 7, 9, 3, 1, 7, 1, 3, 25, 13, 27, 15, 1, 5, 9, 45, 1, 11, 1, 3, 15, 5, 9, 15, 1, 11, 7, 3, 1, 7, 27, 3, 9, 7, 1, 7, 27, 5, 9, 3, 27, 13, 1, 135, 25, 7, 1, 15, 1, 7, 75 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 LINKS Antti Karttunen, Table of n, a(n) for n = 1..10000 Antti Karttunen, Data supplement: n, a(n) computed for n = 1..65537 FORMULA a(n) = A000265(A331595(n)). PROG (PARI) A331731(n) = A000265(A331595(n)); CROSSREFS Cf. A122111, A241909, A331595, A331600. Cf. also A322865, A331732. Sequence in context: A103790 A249947 A193583 * A309891 A317937 A322436 Adjacent sequences:  A331728 A331729 A331730 * A331732 A331733 A331734 KEYWORD nonn AUTHOR Antti Karttunen, Jan 25 2020 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified July 29 17:13 EDT 2021. Contains 346346 sequences. (Running on oeis4.)