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!)
 A192016 Second arithmetic derivative of prime powers: a(n) = A068346(A000961(n)). 3
 0, 0, 0, 4, 0, 0, 16, 5, 0, 0, 80, 0, 0, 0, 7, 27, 0, 0, 176, 0, 0, 0, 0, 9, 0, 0, 0, 640, 0, 0, 0, 0, 216, 0, 0, 0, 0, 0, 0, 0, 0, 13, 55, 0, 1408, 0, 0, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 621, 0, 5120, 0, 0, 0, 0, 0, 0, 0, 19 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS a(n) = A003415(A192015(n)); a(A000040(n)) = 0; a(A002808(n)) > 0. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 PROG (Haskell) a192016 = a068346 . a000961  -- Reinhard Zumkeller, Apr 16 2014 CROSSREFS Sequence in context: A069026 A133851 A062685 * A028699 A019259 A019218 Adjacent sequences:  A192013 A192014 A192015 * A192017 A192018 A192019 KEYWORD nonn AUTHOR Reinhard Zumkeller, Jun 26 2011 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 April 10 08:09 EDT 2021. Contains 342845 sequences. (Running on oeis4.)