id:A100736 - OEIS Search Results

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Inverse modulo 2 binomial transform of 3^n.

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1, 2, 8, 16, 80, 160, 640, 1280, 6560, 13120, 52480, 104960, 524800, 1049600, 4198400, 8396800, 43046720, 86093440, 344373760, 688747520, 3443737600, 6887475200, 27549900800, 55099801600, 282386483200, 564772966400 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`3^n may be retrieved as sum{k=0..n, mod(binomial(n,k),2)A100736(k)}.`
	FORMULA	`a(n)=sum{k=0..n, (-1)^A010060(n-k)*mod(binomial(n, k), 2)3^k}.`
	CROSSREFS	`Adjacent sequences: A100733 A100734 A100735 this_sequence A100737 A100738 A100739` `Sequence in context: A096195 A094014 A098232 this_sequence A099888 A046161 A092978`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Dec 06 2004`

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Last modified November 8 07:45 EST 2009. Contains 166143 sequences.

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