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A222155 Numbers n such that there are four distinct triples (k, k+n, k+2n) of squares. 4
1367520, 5470080, 12307680, 21880320, 32672640, 34188000, 49230720, 58544640, 67008480, 71831760, 73513440, 87521280, 110769120, 130690560, 136752000, 165469920, 196922880, 209969760, 221205600, 231110880, 234178560, 268033920, 287327040, 294053760, 307692000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..25.

EXAMPLE

The following 4 triples have a common difference of 1367520: (802^2, 1418^2, 1838^2), (2162^2, 2458^2, 2722^2), (2729^2, 2969^2, 3191^2), and (6049^2, 6161^2, 6271^2).

CROSSREFS

Cf. A198387, A222154.

Sequence in context: A120609 A094914 A138027 * A250502 A210439 A347278

Adjacent sequences:  A222152 A222153 A222154 * A222156 A222157 A222158

KEYWORD

nonn

AUTHOR

Zdenek Cervenka, Feb 10 2013

STATUS

approved

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Last modified October 24 18:08 EDT 2021. Contains 348233 sequences. (Running on oeis4.)