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A025285 Numbers that are the sum of 2 nonzero squares in exactly 2 ways. +0
1
50, 65, 85, 125, 130, 145, 170, 185, 200, 205, 221, 250, 260, 265, 290, 305, 338, 340, 365, 370, 377, 410, 442, 445, 450, 481, 485, 493, 500, 505, 520, 530, 533, 545, 565, 578, 580, 585, 610, 625, 629, 680, 685, 689, 697, 730, 740, 745, 754, 765, 785, 793, 800, 820 (list; graph; listen)
OFFSET

1,1

LINKS

Index entries for sequences related to sums of squares

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

G. Xiao, Two squares

CROSSREFS

Sequence in context: A167329 A109552 A007692 this_sequence A092541 A102803 A039473

Adjacent sequences: A025282 A025283 A025284 this_sequence A025286 A025287 A025288

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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