The OEIS is supported by the many generous donors to the OEIS Foundation.

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A065524 The (5^n)-th composite number. 0
 4, 10, 38, 164, 760, 3634, 17653, 86542, 426510, 2109602, 10458654, 51938515, 258246036, 1285227649, 6400837884, 31896080698, 159013169263, 793026358830, 3956152086139, 19740921224246, 98526658283206, 491833651069513, 2455555405866035, 12261373736046802 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS MATHEMATICA Composite[n_Integer] := Block[ {k = n + PrimePi[n] + 1 }, While[ k != n + PrimePi[k] + 1, k = n + PrimePi[k] + 1]; Return[ k ]]; Table[ Composite[5^n], {n, 0, 18} ] CROSSREFS Sequence in context: A149199 A149200 A149201 * A024689 A320806 A149202 Adjacent sequences: A065521 A065522 A065523 * A065525 A065526 A065527 KEYWORD nonn AUTHOR Robert G. Wilson v, Nov 27 2001 EXTENSIONS a(19)-a(23) from Chai Wah Wu, Apr 21 2018 STATUS approved

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

Last modified December 8 10:24 EST 2022. Contains 358693 sequences. (Running on oeis4.)