id:A125018 - OEIS Search Results

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Numbers == 1 mod 4 with a unique partition as a sum of 2 squares x^2+y^2.

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1, 5, 9, 13, 17, 29, 37, 41, 45, 49, 53, 61, 73, 81, 89, 97, 101, 109, 113, 117, 121, 137, 149, 153, 157, 173, 181, 193, 197, 229, 233, 241, 245, 257, 261, 269, 277, 281, 293 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`These numbers have exactly one representation as a sum of two triangular numbers A119345`
	CROSSREFS	`Cf. A002145, A124982, A124983.` `Sequence in context: A057653 A085759 A032493 this_sequence A074787 A079497 A081835` `Adjacent sequences: A125015 A125016 A125017 this_sequence A125019 A125020 A125021`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Nov 16 2006`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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