id:A053704 - OEIS Search Results

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Prime powers p^w such that p^w-2 is prime.

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4, 9, 25, 49, 81, 169, 243, 361, 729, 841, 1369, 1849, 2209, 2401, 3721, 5041, 6859, 7921, 10609, 11449, 14641, 16129, 17161, 19321, 19683, 28561, 29791, 29929, 36481, 44521, 49729, 50653, 54289, 57121, 66049, 85849, 97969, 113569, 128881 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`A025475(n) - 2 is prime`
	EXAMPLE	`4 is here since 4-2=2, 243=3^5 is here because 241 is prime`
	CROSSREFS	`A025475.` `Sequence in context: A069557 A130283 A065739 this_sequence A158144 A158145 A082180` `Adjacent sequences: A053701 A053702 A053703 this_sequence A053705 A053706 A053707`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Feb 14 2000`

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

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