id:A094621 - OEIS Search Results

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Sequence whose n-th term digits sum to 2n.

+0
3

0, 11, 13, 141, 143, 1441, 1443, 14441, 14443, 144441, 144443, 1444441, 1444443, 14444441, 14444443, 144444441, 144444443, 1444444441, 1444444443, 14444444441, 14444444443, 144444444441, 144444444443, 1444444444441 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Digits are reversals of A094622.`
	FORMULA	`a(n)=10^(n/2)((11sqrt(10)/20-1)+(13/18-13sqrt(10)/18)(-1)^n+31sqrt(10)/180+31/18)+(-1)^n-22/9`
	CROSSREFS	`Cf. A094620, A094622.` `Sequence in context: A086549 A108090 A136296 this_sequence A144375 A140969 A064759` `Adjacent sequences: A094618 A094619 A094620 this_sequence A094622 A094623 A094624`
	KEYWORD	`easy,nonn,base`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 15 2004`

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Last modified November 25 13:47 EST 2009. Contains 167481 sequences.

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