id:A089882 - OEIS Search Results

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Number of subsets of {1,.., n} containing exactly one twin prime pair.

+0
2

0, 0, 0, 0, 8, 16, 32, 64, 128, 256, 512, 1024, 768, 1536, 3072, 6144, 12288, 24576, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 20971520, 41943040, 83886080, 167772160 (list; graph; listen)

	OFFSET	`1,5`
	COMMENT	`a(n) = ceil(A089881(n)/2)*2^(n-A089881(n)).`
	CROSSREFS	`Cf. A071538, A089827, A089828, A001359, A006512.` `Adjacent sequences: A089879 A089880 A089881 this_sequence A089883 A089884 A089885` `Sequence in context: A068935 A054743 A048169 this_sequence A043111 A043891 A072578`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 13 2003`

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Last modified October 15 20:12 EDT 2008. Contains 145099 sequences.

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