id:A096883 - OEIS Search Results

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Expansion of (1+10x)/(1-101x^2).

+0
2

1, 10, 101, 1010, 10201, 102010, 1030301, 10303010, 104060401, 1040604010, 10510100501, 105101005010, 1061520150601, 10615201506010, 107213535210701, 1072135352107010, 10828567056280801, 108285670562808010 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=9a(n-1)+10a(n-2)+101^floor((n-2)/2); a(n)=sum{k=0..floor(n/2), binomial(floor(n/2), k)10^(n-2k) }.`
	CROSSREFS	`Cf. A004663, A026383, A016116, A096881, A096882.` `Sequence in context: A105032 A123522 A056830 this_sequence A033128 A094945 A041041` `Adjacent sequences: A096880 A096881 A096882 this_sequence A096884 A096885 A096886`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jul 14 2004`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research