A025363 Numbers that are the sum of 4 nonzero squares in exactly 7 ways.

135, 148, 170, 172, 182, 183, 187, 189, 190, 199, 215, 229, 245, 261, 263, 289, 305, 317, 347, 356, 389, 401, 404, 592, 680, 688, 728, 760, 1424, 1616, 2368, 2720, 2752, 2912, 3040, 5696, 6464, 9472, 10880, 11008, 11648, 12160, 22784, 25856, 37888, 43520

Offset

1,1

Links

Robert Price, Table of n, a(n) for n = 1..50

Index entries for sequences related to sums of squares

Formula

{n: A025428(n) = 7}. - R. J. Mathar, Jun 15 2018

Crossrefs

Sequence in context: A066282 A235809 A066176 * A296451 A096593 A050215

Adjacent sequences: A025360 A025361 A025362 * A025364 A025365 A025366

Keyword

nonn

Author

David W. Wilson

Status

approved