id:A050716 - OEIS Search Results

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Inserting a digit '6' between adjacent digits of n makes a prime.

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13, 17, 23, 29, 37, 41, 43, 47, 53, 59, 61, 71, 79, 83, 97, 101, 103, 107, 109, 127, 131, 133, 139, 151, 157, 161, 173, 193, 211, 221, 223, 227, 251, 269, 281, 283, 301, 307, 311, 323, 329, 347, 349, 353, 371, 377, 401, 421, 457, 463, 479, 481, 487, 517, 523 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`E.g. 481 becomes 4(6)8(6)1 becomes prime 46861.`
	CROSSREFS	`Cf. A050674, A050711-A050719.` `Sequence in context: A105731 A060343 A080603 this_sequence A092146 A120157 A022893` `Adjacent sequences: A050713 A050714 A050715 this_sequence A050717 A050718 A050719`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1999.`

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.

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