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A025358 Numbers that are the sum of 4 nonzero squares in exactly 2 ways. 0
31, 34, 36, 37, 39, 43, 45, 47, 49, 50, 54, 57, 61, 68, 69, 71, 74, 77, 81, 83, 86, 94, 107, 113, 116, 131, 136, 144, 149, 200, 216, 272, 296, 344, 376, 464, 544, 576, 800, 864, 1088, 1184, 1376, 1504, 1856, 2176, 2304, 3200, 3456, 4352, 4736, 5504, 6016, 7424 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..54.

Index entries for sequences related to sums of squares

Eric Weisstein's World of Mathematics, Square Number.

CROSSREFS

Sequence in context: A041479 A194380 A269267 * A095473 A095467 A095461

Adjacent sequences:  A025355 A025356 A025357 * A025359 A025360 A025361

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified August 20 03:34 EDT 2017. Contains 290823 sequences.