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A024507 Numbers that are the sum of 2 distinct nonzero squares (with repetition). 12
5, 10, 13, 17, 20, 25, 26, 29, 34, 37, 40, 41, 45, 50, 52, 53, 58, 61, 65, 65, 68, 73, 74, 80, 82, 85, 85, 89, 90, 97, 100, 101, 104, 106, 109, 113, 116, 117, 122, 125, 125, 130, 130, 136, 137, 145, 145, 146, 148, 149, 153, 157, 160, 164, 169, 170, 170, 173, 178, 180, 181, 185, 185, 193 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Zak Seidov, Table of n, a(n) for n = 1..3842

Index entries for sequences related to sums of squares

MATHEMATICA

nn=10000; A024507=Table[x^2+y^2, {x, Sqrt[nn]}, {y, x+1, Sqrt[nn-x^2]}]//Flatten//Sort (* Zak Seidov, Apr 07 2011*)

CROSSREFS

Cf. A009000, A009003, A024507, A004431 (duplicates removed), A055096.

Sequence in context: A072284 A242898 A230486 * A004431 A025302 A268379

Adjacent sequences:  A024504 A024505 A024506 * A024508 A024509 A024510

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

NAME edited  by Zak Seidov, Apr 08 2011

STATUS

approved

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Last modified December 6 15:01 EST 2016. Contains 278781 sequences.