id:A120023 - OEIS Search Results

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A120023

Numbers n such that 2*6^n+1 is prime.

+0
2

1, 2, 3, 4, 10, 11, 17, 20, 28, 41, 48, 57, 58, 59, 71, 208, 972, 993, 1432, 2001, 2175, 2622, 3419, 3720, 4860, 7300, 7402, 14988, 15774, 18510 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`If 6^n belongs to T(m,n)=2mn+m+n [A083487] then 2*6^n+1 is not prime. [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 24 2009]`
	CROSSREFS	`Cf. A057472 A120024.` `Sequence in context: A117383 A047455 A039002 this_sequence A115897 A116019 A087460` `Adjacent sequences: A120020 A120021 A120022 this_sequence A120024 A120025 A120026`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierrecami(AT)tele2.fr), Jun 04 2006`
	EXTENSIONS	`More terms from Pierre CAMI (pierrecami(AT)tele2.fr), Jun 16 2006`

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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