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!)
 A325316 a(n) = A048250(n) OR A162296(n), where OR is the bitwise-OR, A003986. 3
 1, 3, 4, 7, 6, 12, 8, 15, 13, 18, 12, 28, 14, 24, 24, 31, 18, 31, 20, 26, 32, 36, 24, 60, 31, 42, 36, 56, 30, 72, 32, 63, 48, 54, 48, 79, 38, 60, 56, 90, 42, 96, 44, 52, 62, 72, 48, 124, 57, 91, 72, 58, 54, 108, 72, 120, 80, 90, 60, 104, 62, 96, 104, 127, 84, 144, 68, 126, 96, 144, 72, 191, 74, 114, 124, 124, 96, 168, 80 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Antti Karttunen, Table of n, a(n) for n = 1..16384 FORMULA a(n) = A003986(A048250(n), A162296(n)). a(n) = A000203(n) - A325318(n) = A325317(n) + A325318(n). MATHEMATICA Array[BitOr @@ Map[Total, {#3, Complement[#2, #3]}] & @@ {#1, #2, Select[#2, SquareFreeQ]} & @@ {#, Divisors[#]} &, 79] (* Michael De Vlieger, Apr 21 2019 *) PROG (PARI) A048250(n) = factorback(apply(p -> p+1, factor(n)[, 1])); A162296(n) = sumdiv(n, d, d*(1-issquarefree(d))); A325316(n) = bitor(A048250(n), A162296(n)); CROSSREFS Cf. A000203, A003986, A048250, A162296, A325317, A325318. Sequence in context: A097011 A074847 A325317 * A227131 A097863 A287926 Adjacent sequences:  A325313 A325314 A325315 * A325317 A325318 A325319 KEYWORD nonn AUTHOR Antti Karttunen, Apr 21 2019 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 May 15 02:21 EDT 2021. Contains 343909 sequences. (Running on oeis4.)