A025368 - OEIS

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A025368

Numbers that are the sum of 4 nonzero squares in 3 or more ways.

6

28, 42, 52, 55, 58, 60, 63, 66, 67, 70, 73, 75, 76, 78, 79, 82, 84, 85, 87, 90, 91, 92, 93, 95, 97, 98, 99, 100, 102, 103, 105, 106, 108, 109, 110, 111, 112, 114, 115, 117, 118, 119, 121, 122, 123, 124, 125, 126, 127, 129, 130, 132, 133, 134, 135, 137, 138, 139, 140, 141

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..60.

Index entries for sequences related to sums of squares

FORMULA

{n: A025428(n) >=3}. Union of A025369 and A025359.- R. J. Mathar, Jun 15 2018

CROSSREFS

Cf. A025331, A025359, A025367, A025369, A025407, A344796.

Sequence in context: A135789 A219882 A154035 * A025359 A056031 A061826

Adjacent sequences: A025365 A025366 A025367 * A025369 A025370 A025371

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved