A025368 Numbers that are the sum of 4 nonzero squares in 3 or more ways.

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

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