id:A155905 - OEIS Search Results

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Numbers n such that it is possible to append a single digit to the end of 2^n to make it prime.

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0, 1, 2, 3, 4, 6, 7, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 24, 25, 27, 30, 31, 33, 36, 38, 42, 43, 46, 49, 50, 51, 54, 55, 57, 58, 60, 64, 65, 73, 74, 84, 93, 106, 108, 123, 126, 129, 139, 150, 162, 183, 187, 196, 198, 220, 271, 273, 279, 301, 312, 379, 392 (list; graph; listen)

	OFFSET	`0,3`
	EXAMPLE	`For example 641 and 1283 are prime so 6 and 7 are in the sequence respectively.`
	CROSSREFS	`Sequence in context: A064414 A002475 A057519 this_sequence A047518 A120440 A049995` `Adjacent sequences: A155902 A155903 A155904 this_sequence A155906 A155907 A155908`
	KEYWORD	`nonn`
	AUTHOR	`Dmitry Kamenetsky (dkamen(AT)rsise.anu.edu.au), Jan 30 2009`

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

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