id:A130593 - OEIS Search Results

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Evil semiprimes.

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6, 9, 10, 15, 33, 34, 39, 46, 51, 57, 58, 65, 77, 85, 86, 95, 106, 111, 119, 123, 141, 142, 159, 166, 169, 177, 178, 183, 187, 201, 202, 209, 215, 219, 221, 226, 235, 237, 249, 267 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Products of two (not necessarily distinct) primes such that the product has an even number of 1's in its binary expansion. Non-evil semiprimes are odious (A000069).`
	FORMULA	`A001358 INTERSECTION A001969.`
	CROSSREFS	`Cf. A000069, A001358, A001969.` `Sequence in context: A054020 A121014 A020219 this_sequence A051221 A029843 A000729` `Adjacent sequences: A130590 A130591 A130592 this_sequence A130594 A130595 A130596`
	KEYWORD	`easy,nonn`
	AUTHOR	`Jonathan Vos Post (jvospost2(AT)yahoo.com), Jun 16 2007`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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