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

 

Logo

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!)
A018929 Define {b(n)} by b(1) = 3, b(n) (n >= 2) is smallest number such that b(1)^2 + ... + b(n)^2 = m^2 for some m and all b(i) are distinct. Sequence gives values of m^2. 3
9, 25, 169, 7225, 24649, 151905625, 155276521, 11296501225, 76364348281, 115402204681, 107410609760281, 297167295808681, 3750076824489457081, 2635366822165468321225, 17815079717838565851481, 761621011605820344834025 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..16.

FORMULA

a(n) = A018928(n+1)^2 - A018930(n+1)^2. - César Aguilera, Nov 02 2018

CROSSREFS

Cf. A018928, A018930.

Sequence in context: A089998 A014728 A223646 * A051515 A328714 A337344

Adjacent sequences: A018926 A018927 A018928 * A018930 A018931 A018932

KEYWORD

nonn

AUTHOR

Charles Reed (charles.reed(AT)bbs.ewgateway.org)

EXTENSIONS

More terms from David W. Wilson

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 5 13:26 EST 2022. Contains 358586 sequences. (Running on oeis4.)