id:A002281 - OEIS Search Results

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7(10^n - 1)/9.

+0
6

0, 7, 77, 777, 7777, 77777, 777777, 7777777, 77777777, 777777777, 7777777777, 77777777777, 777777777777, 7777777777777, 77777777777777, 777777777777777, 7777777777777777, 77777777777777777 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=10*a(n-1)+7, a(0)=0 [From Paolo P. Lava (ppl(AT)spl.at), Jan 23 2009]`
	CROSSREFS	`Sequence in context: A043042 A144071 A061546 this_sequence A097983 A107866 A034176` `Adjacent sequences: A002278 A002279 A002280 this_sequence A002282 A002283 A002284`
	KEYWORD	`easy,nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research