id:A100738 - OEIS Search Results

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Inverse modulo 2 binomial transform of 5^n.

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1, 4, 24, 96, 624, 2496, 14976, 59904, 390624, 1562496, 9374976, 37499904, 243749376, 974997504, 5849985024, 23399940096, 152587890624, 610351562496, 3662109374976, 14648437499904, 95214843749376, 380859374997504 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`5^n may be retrieved as sum{k=0..n, mod(binomial(n,k),2)A100738(k)}.`
	FORMULA	`a(n)=sum{k=0..n, (-1)^A010060(n-k)*mod(binomial(n, k), 2)5^k}.`
	CROSSREFS	`Sequence in context: A100381 A091143 A119920 this_sequence A139238 A139231 A052462` `Adjacent sequences: A100735 A100736 A100737 this_sequence A100739 A100740 A100741`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Dec 06 2004`

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

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