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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
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
KEYWORD
nonn
AUTHOR
EXTENSIONS
Name edited by Zak Seidov, Apr 08 2011
STATUS
approved

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Last modified February 26 13:52 EST 2024. Contains 370352 sequences. (Running on oeis4.)