id:A115489 - OEIS Search Results

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Number of monic irreducible polynomials of degree 3 in GF(2^n)[x].

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2, 20, 168, 1360, 10912, 87360, 699008, 5592320, 44739072, 357913600, 2863310848, 22906490880, 183251935232, 1466015498240, 11728124018688, 93824992215040, 750599937851392, 6004799503073280, 48038396025110528 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(0)=0, a(1)=2, a(n)=10a(n-1)-16a(n-2) - T. D. Noe (noe(AT)sspectra.com), Nov 30 2006` `a(n)=-(1/3)2^n+(1/3)8^n, with n>=0 - Paolo P. Lava (ppl(AT)spl.at), Jun 12 2008`
	CROSSREFS	`Sequence in context: A093302 A093130 A043029 this_sequence A105493 A067641 A037566` `Adjacent sequences: A115486 A115487 A115488 this_sequence A115490 A115491 A115492`
	KEYWORD	`nonn`
	AUTHOR	`Max Alekseyev (maxal(AT)cs.ucsd.edu)`

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

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