id:A094623 - OEIS Search Results

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Sequence whose n-th term digits sum to n.

+0
4

0, 1, 11, 21, 121, 221, 1221, 2221, 12221, 22221, 122221, 222221, 1222221, 2222221, 12222221, 22222221, 122222221, 222222221, 1222222221, 2222222221, 12222222221, 22222222221, 122222222221, 222222222221, 1222222222221 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`n-th term digits are reversals of A094624(n).`
	FORMULA	`G.f. : x(1+10x)/((1-x)(1-10x^2)); a(n)=10^(n/2)/2(11/9+2sqrt(10)/9-(2sqrt(10)/9-11/9)(-1)^n)-11/9.`
	CROSSREFS	`Cf. A094625, A094626.` `Sequence in context: A126299 A166707 A116525 this_sequence A034922 A015446 A083177` `Adjacent sequences: A094620 A094621 A094622 this_sequence A094624 A094625 A094626`
	KEYWORD	`easy,nonn,base`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 15 2004`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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