id:A054188 - OEIS Search Results

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Number of positive integers <= 2^n of form 7 x^2 + 9 y^2.

+0
1

0, 0, 0, 1, 3, 4, 9, 16, 30, 54, 102, 190, 360, 688, 1313, 2535, 4889, 9464, 18376, 35741, 69623, 135899, 265500, 519498, 1017399, 1994552, 3913769, 7685870, 15104369, 29704016, 58451497, 115087453, 226721774, 446861878, 881163356 (list; graph; listen)

	OFFSET	`0,5`
	LINKS	`Index entries for sequences related to populations of quadratic forms`
	CROSSREFS	`Sequence in context: A054162 A125874 A030136 this_sequence A093368 A095095 A003611` `Adjacent sequences: A054185 A054186 A054187 this_sequence A054189 A054190 A054191`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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