id:A046636 - OEIS Search Results

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Number of cubic residues mod 8^n.

+0
1

1, 5, 37, 293, 2341, 18725, 149797, 1198373, 9586981, 76695845, 613566757, 4908534053, 39268272421, 314146179365, 2513169434917, 20105355479333, 160842843834661, 1286742750677285, 10293942005418277, 82351536043346213 (list; graph; listen)

	OFFSET	`0,2`
	LINKS	`E. Wilmer and O. Schirokauer, A note on Stephan's conjecture 25`
	FORMULA	`(4*8^n + 3)/7, n>0.`
	MATHEMATICA	`a = {}; ZZ = 1; Do[ZZ = ZZ + 2^(3x); AppendTo[a, ZZ], {x, 0, 23}]; a/2 - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Apr 03 2007`
	CROSSREFS	`Cf. A007583.` `Sequence in context: A121141 A083232 A089303 this_sequence A091126 A066381 A078253` `Adjacent sequences: A046633 A046634 A046635 this_sequence A046637 A046638 A046639`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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