id:A054193 - OEIS Search Results

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

+0
1

0, 0, 0, 0, 1, 2, 4, 8, 14, 26, 48, 87, 162, 303, 569, 1076, 2044, 3903, 7485, 14401, 27778, 53724, 104135, 202242, 393450, 766556, 1495546, 2921307, 5712535, 11181823, 21907443, 42957050, 84296463, 165535959, 325281762, 639576071 (list; graph; listen)

	OFFSET	`0,6`
	LINKS	`Index entries for sequences related to populations of quadratic forms`
	CROSSREFS	`Sequence in context: A027557 A120545 A130708 this_sequence A117633 A135491 A164154` `Adjacent sequences: A054190 A054191 A054192 this_sequence A054194 A054195 A054196`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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