id:A095027 - OEIS Search Results

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Semiprimes of the form 3^n - 2^n.

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65, 2059, 19171, 1586131, 1161737179, 94134790219, 450283768452043891, 7509466514977363620705281135650699, 2909321189362570189660446183802104997118371 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Dario Alpern, Factorization using the Elliptic Curve Method`
	EXAMPLE	`a(1)=65 because 3^4-2^4=65=513 is a semiprime. a(3)=19171: 3^9-2^9=19171=191009.`
	CROSSREFS	`Cf. A082869 = n such that 3^n-2^n is a semiprime, A058765 primes of the form 3^n-2^n.` `Sequence in context: A069424 A086029 A002502 this_sequence A017781 A017728 A004354` `Adjacent sequences: A095024 A095025 A095026 this_sequence A095028 A095029 A095030`
	KEYWORD	`nonn`
	AUTHOR	`Hugo Pfoertner (hugo(AT)pfoertner.org), Jun 03 2004`

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

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