id:A097272 - OEIS Search Results

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Least integer with same "mod 2 prime signature" as n.

+0
4

1, 2, 3, 4, 3, 6, 3, 8, 9, 6, 3, 12, 3, 6, 15, 16, 3, 18, 3, 12, 15, 6, 3, 24, 9, 6, 27, 12, 3, 30, 3, 32, 15, 6, 15, 36, 3, 6, 15, 24, 3, 30, 3, 12, 45, 6, 3, 48, 9, 18, 15, 12, 3, 54, 15, 24, 15, 6, 3, 60, 3, 6, 45, 64, 15, 30, 3, 12, 15, 30, 3, 72, 3, 6, 45, 12, 15, 30, 3, 48, 81, 6, 3, 60 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`For n=2^a_0p_1^a_1...*p_n^a_n where p_i is odd prime and a_1>=a_2>=...>=a_n, define "mod 2 prime signature" to be ordered prime exponents (a_0,a_1,...,a_n).` `Least integer with a given "mod 2 prime signature" is obtained by replacing p_1 with 3, p_2 with 5,..., p_n with n-th odd prime.`
	CROSSREFS	`Cf. A097273, A097274, A097275.` `Sequence in context: A092089 A117659 A079065 this_sequence A126630 A167234 A088043` `Adjacent sequences: A097269 A097270 A097271 this_sequence A097273 A097274 A097275`
	KEYWORD	`nonn`
	AUTHOR	`Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 22 2004`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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