id:A093008 - OEIS Search Results

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Smallest number of 1's to append to the binary representation of n such that primes become nonprimes and nonprimes become primes.

+0
3

1, 5, 2, 2, 4, 1, 1, 1, 1, 2, 3, 3, 1, 1, 1, 2, 1, 1, 1, 1, 1, 4, 2, 3, 2, 1, 3, 4, 2, 1, 1, 2, 1, 2, 1, 1, 1, 3, 1, 2, 3, 7, 1, 1, 3, 4, 1, 1, 2, 1, 1, 2, 2, 1, 2, 1, 3, 12, 1, 3, 1, 2, 1, 4, 1, 5, 1, 1, 1, 2, 1, 7, 1, 1, 1, 2, 2, 1, 1, 3, 1, 2, 2, 5, 6, 1, 23, 4, 6, 1, 2, 3, 3, 2, 1, 1, 1, 1, 1, 10 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`n>1: a(n) = A063377(n) + A040081(n+1).`
	CROSSREFS	`Cf. A093009.` `Sequence in context: A119320 A070962 A090125 this_sequence A161462 A164557 A153842` `Adjacent sequences: A093005 A093006 A093007 this_sequence A093009 A093010 A093011`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 14 2004`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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