This site is supported by donations to The OEIS Foundation.

 Annual Appeal: Please make a donation to keep the OEIS running. In 2018 we replaced the server with a faster one, added 20000 new sequences, and reached 7000 citations (often saying "discovered thanks to the OEIS"). Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A072776 Exponents of powers of squarefree numbers. 5
 1, 1, 1, 2, 1, 1, 1, 3, 2, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 2, 1, 3, 1, 1, 1, 5, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS A072774(n) = A072775(n)^a(n); A072774(n) is squarefree iff a(n)=1. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 PROG (Haskell) a072776 n = a072776_list !! (n-1)  -- a072776_list defined in A072774. -- Reinhard Zumkeller, Apr 06 2014 CROSSREFS Cf. A052409. Sequence in context: A051904 A070012 A071178 * A077481 A278113 A242012 Adjacent sequences:  A072773 A072774 A072775 * A072777 A072778 A072779 KEYWORD nonn AUTHOR Reinhard Zumkeller, Jul 10 2002 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 December 17 14:12 EST 2018. Contains 318201 sequences. (Running on oeis4.)