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A027572 Palindromes of form n^2 + (n+1)^2. 1
1, 5, 181, 313, 545, 1690961, 3162613, 3187813, 5258525, 5824285, 58281418285, 1635446445361, 3166046406613, 124852060258421, 149988757889941, 310433303334013, 582818040818285, 12951570707515921, 5227371841481737225, 5649436330336349465, 5816694029204966185 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..21.

P. De Geest, Palindromic Sums of Squares of Consecutive Integers

CROSSREFS

Cf. A027571.

Sequence in context: A250327 A162136 A053363 * A050239 A218690 A256286

Adjacent sequences:  A027569 A027570 A027571 * A027573 A027574 A027575

KEYWORD

nonn,base

AUTHOR

Patrick De Geest

EXTENSIONS

a(17)-a(20) from Donovan Johnson, Aug 26 2012

a(1)=1 added by Philip Mizzi, Sep 02 2019

STATUS

approved

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Last modified October 17 11:40 EDT 2019. Contains 328108 sequences. (Running on oeis4.)