A127851 - OEIS

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A127851

a(n) has n 1's followed by C(n-1,2) 0's.

0, 1, 11, 1110, 1111000, 11111000000, 1111110000000000, 1111111000000000000000, 11111111000000000000000000000, 1111111110000000000000000000000000000 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,3`
	COMMENTS	`Base 2 version of A127850.`
	LINKS	`Table of n, a(n) for n=0..9.`
	FORMULA	`a(n)=10^C(n,2)(10^n-1)/(910^(n-1))`
	CROSSREFS	`Sequence in context: A133342 A110574 A191111 * A135656 A130602 A099814` `Adjacent sequences: A127848 A127849 A127850 * A127852 A127853 A127854`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry, Feb 02 2007`
	STATUS	`approved`

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Last modified May 26 04:23 EDT 2013. Contains 225653 sequences.