id:A032723 - OEIS Search Results

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Numbers n such that n prefixed by '6' and followed by '7' is a prime.

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0, 1, 4, 7, 19, 21, 24, 25, 27, 28, 31, 33, 36, 39, 42, 54, 57, 60, 63, 73, 82, 85, 90, 91, 94, 96, 97, 99, 100, 102, 105, 129, 135, 141, 148, 150, 154, 162, 163, 165, 166, 168, 171, 175, 183, 192, 196, 198, 201, 204, 205, 213, 220, 229, 232, 234, 241, 246, 247 (list; graph; listen)

	OFFSET	`1,3`
	CROSSREFS	`Sequence in context: A100828 A132207 A097537 this_sequence A063605 A024824 A164265` `Adjacent sequences: A032720 A032721 A032722 this_sequence A032724 A032725 A032726`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), May 15, 1998.`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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