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!)
 A059592 Square-full part of n^2+1. 9
 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 17, 1, 1, 29, 1, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 13, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,8 COMMENTS a(n)=A000188[n^2+1], A059591[n]*a(n)^2 = n^2+1 Related to period-1 continued fractions [z,z,z,...] A124808 gives number of numbers m<=n with a(m)=1. - Reinhard Zumkeller, Nov 08 LINKS R. Zumkeller, Table of n, a(n) for n = 0..1000 EXAMPLE a(7)=5 since 7^2+1 = 50 = 25*2 = (5^2)*2 CROSSREFS Cf. A002522. Sequence in context: A337337 A119788 A334561 * A295554 A319099 A098087 Adjacent sequences: A059589 A059590 A059591 * A059593 A059594 A059595 KEYWORD easy,nonn AUTHOR Marc LeBrun, Jan 25 2001 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 5 06:35 EST 2022. Contains 358582 sequences. (Running on oeis4.)