id:A027698 - OEIS Search Results

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n-th prime has odd number of 1's in binary expansion.

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1, 4, 5, 6, 8, 11, 12, 13, 15, 17, 18, 19, 21, 22, 25, 27, 28, 29, 31, 32, 33, 36, 37, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 58, 61, 63, 65, 67, 73, 75, 78, 80, 81, 82, 83, 84, 85, 86, 88, 90, 93, 94, 95, 98, 100, 102, 103, 104, 106, 107, 110, 111, 112 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Select[ Range[ 150 ], OddQ[ Length[ Cases[ IntegerDigits[ Prime[ # ], 2 ], 1 ] ] ]& ]`
	CROSSREFS	`Sequence in context: A037354 A035065 A035067 this_sequence A047313 A030343 A030590` `Adjacent sequences: A027695 A027696 A027697 this_sequence A027699 A027700 A027701`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms from Erich Friedman (erich.friedman(AT)stetson.edu).`

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

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