id:A104388 - OEIS Search Results

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Lesser of two successive primes the average of which is a repdigit.

+0
5

3, 5, 7, 97, 109, 4441, 111111109, 555555555551, 9999999999999937, 111111111111111091, 444444444444444419, 555555555555555555491, 777777777777777777777767, 333333333333333333333333333333293 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Larger primes A104387, repdigits A104389. What is the next term?`
	FORMULA	`A104388(n)=p[A104386(n)]`
	CROSSREFS	`Cf. A054268, A104386, A104387, A104389.` `Sequence in context: A160360 A082697 A051345 this_sequence A110337 A132287 A046201` `Adjacent sequences: A104385 A104386 A104387 this_sequence A104389 A104390 A104391`
	KEYWORD	`nonn,base`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Mar 04 2005`
	EXTENSIONS	`More terms from Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 09 2006`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

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