A222155 Numbers n such that there are four distinct triples (k, k+n, k+2n) of squares.

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

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