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!)
 A069585 a(n) = n - largest prime power <= n. 0
 0, 0, 0, 1, 2, 3, 0, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,5 COMMENTS Begins with 3 consecutive zeros. Also a(8)=a(9)=0. Question: are there any more occurrence of 2 or more consecutive zeros? LINKS CROSSREFS Cf. A069584. Sequence in context: A261430 A024466 A021817 * A167613 A319753 A078332 Adjacent sequences:  A069582 A069583 A069584 * A069586 A069587 A069588 KEYWORD easy,nonn AUTHOR Amarnath Murthy, Mar 24 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 August 10 14:50 EDT 2020. Contains 336381 sequences. (Running on oeis4.)