id:A094620 - OEIS Search Results

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Palindromic sequence whose n-th term digits sum to 2n.

+0
3

0, 11, 22, 141, 242, 1441, 2442, 14441, 24442, 144441, 244442, 1444441, 2444442, 14444441, 24444442, 144444441, 244444442, 1444444441, 2444444442, 14444444441, 24444444442, 144444444441, 244444444442, 1444444444441 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=10^(n/2)(11/9+13sqrt(10)/18+(11/9-13sqrt(10)/18)(-1)^n)+(-1)^n/2-53/18; a(n)=(A094621(n)+A094622(n))/2.`
	CROSSREFS	`Sequence in context: A061852 A083511 A067894 this_sequence A077431 A118133 A155973` `Adjacent sequences: A094617 A094618 A094619 this_sequence A094621 A094622 A094623`
	KEYWORD	`easy,nonn,base`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 15 2004`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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