id:A054232 - OEIS Search Results

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Number of positive integers <= 2^n of form x^2 + 19 y^2.

+0
1

1, 1, 2, 2, 4, 9, 15, 29, 52, 96, 179, 336, 640, 1218, 2338, 4507, 8706, 16874, 32808, 63863, 124599, 243437, 476164, 932611, 1828498, 3588303, 7047954, 13853566, 27250355, 53636267, 105633670, 208154090, 410381069, 809456768, 1597319534 (list; graph; listen)

	OFFSET	`0,3`
	CROSSREFS	`Sequence in context: A054233 A054231 A054230 this_sequence A100048 A052935 A052925` `Adjacent sequences: A054229 A054230 A054231 this_sequence A054233 A054234 A054235`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research