id:A083227 - OEIS Search Results

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(9*10^n+(-10)^n)/10.

+0
2

1, 8, 100, 800, 10000, 80000, 1000000, 8000000, 100000000, 800000000, 10000000000, 80000000000, 1000000000000, 8000000000000, 100000000000000, 800000000000000, 10000000000000000, 80000000000000000 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=(9*10^n+(-10)^n)/10 G.f. (1+8x)/((1+10x)(1-10x)) E.g.f. (9exp(10x)+exp(-10x))/10`
	CROSSREFS	`Cf. A083226.` `Adjacent sequences: A083224 A083225 A083226 this_sequence A083228 A083229 A083230` `Sequence in context: A116229 A091801 A050919 this_sequence A060570 A001575 A090237`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Apr 23 2003`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

AT&T Labs Research