A025394 Numbers that are the sum of 4 distinct nonzero squares in 10 or more ways.

270, 294, 318, 330, 342, 350, 351, 354, 366, 375, 378, 382, 390, 398, 399, 402, 406, 410, 414, 422, 426, 429, 430, 434, 435, 438, 441, 442, 446, 450, 455, 459, 462, 465, 466, 470, 471, 474, 478, 483, 486, 490, 494, 495, 498, 501, 506, 507, 510, 513, 515, 518, 519, 522

Offset

1,1

Comments

The common sum of rows, columns and diagonals of magic squares whose entries are distinct squares must be terms of this sequence. - M. F. Hasler, Jul 22 2025

Links

M. F. Hasler, Table of n, a(n) for n = 1..10000

Index entries for sequences related to sums of squares

Formula

{n: A025443(n) >= 10}. - R. J. Mathar, Jun 15 2018

Crossrefs

Cf. A025443 (number of ways to write n as sum of 4 distinct nonzero squares).

Cf. A025385 (subsequence of terms with A025443(n) = 10 exactly),

Subsequence of A025375 (sums of 4 not necessarily distinct nonzero squares in at least 10 ways).

Sequence in context: A274328 A025393 A291790 * A345173 A291789 A292766

Adjacent sequences: A025391 A025392 A025393 * A025395 A025396 A025397

Keyword

nonn

Author

David W. Wilson

Status

approved