id:A127691 - OEIS Search Results

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(2*n+1)^n-(2*n-1)^n-(2*n)^n.

+0
3

-1, 0, 0, 2, 64, 2002, 69264, 2697354, 117899520, 5740530914, 308814720400, 18213955960378, 1169672907313728, 81286160430474066, 6080123714344570128, 487166244246501489002, 41636260100744439399424, 3781449867356996500139458, 363724112817207189865471248 (list; graph; listen)

	OFFSET	`0,4`
	COMMENT	`Theorem: (2n+1)^n-(2n-1)^n-(2*n)^n > 0 for n >= 3.`
	REFERENCES	`D. S. Mitrinovic, Analytic Inequalities, Springer-Verlag, 1970; p. 192, 3.1.13.`
	CROSSREFS	`Sequence in context: A047707 A134939 A122603 this_sequence A013822 A010047 A054956` `Adjacent sequences: A127688 A127689 A127690 this_sequence A127692 A127693 A127694`
	KEYWORD	`sign`
	AUTHOR	`njas, Apr 03 2007`

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

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