id:A056652 - OEIS Search Results

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Integers > 1 whose prime divisors are all Mersenne primes (i.e. of the form (2^p -1)).

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3, 7, 9, 21, 27, 31, 49, 63, 81, 93, 127, 147, 189, 217, 243, 279, 343, 381, 441, 567, 651, 729, 837, 889, 961, 1029, 1143, 1323, 1519, 1701, 1953, 2187, 2401, 2511, 2667, 2883, 3087, 3429, 3937, 3969, 4557, 5103, 5859, 6223, 6561, 6727, 7203, 7533, 8001 (list; graph; listen)

	OFFSET	`0,1`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	EXAMPLE	`63 is included because the prime factorization of 63 is 3^2 * 7 = (2^2 -1)^2 *(2^3 -1).`
	CROSSREFS	`Sequence in context: A096102 A045797 A118555 this_sequence A014959 A057233 A125227` `Adjacent sequences: A056649 A056650 A056651 this_sequence A056653 A056654 A056655`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Aug 09 2000`

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

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