id:A088073 - OEIS Search Results

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Beginning with 11 (concatenation of 1 twice), smallest number which is a concatenation of itself as many (say k) times required, chosen from odd numbers not == 5 (mod 10),in natural order, so that every partial concatenation is prime.

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11, 3, 777, 999, 11, 131313131313131313131313131313131313131313 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Numbers chosen are from 1,3,7,9,11,13,17,19,21,23,27,29,... which can produce primes.` `Next term has > 2000 digits and is too large to include. - David Wasserman (wasserma(AT)spawar.navy.mil), Jul 01 2005`
	CROSSREFS	`Cf. A088074.` `Sequence in context: A079841 A069869 A110782 this_sequence A010187 A114267 A141240` `Adjacent sequences: A088070 A088071 A088072 this_sequence A088074 A088075 A088076`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 22 2003`
	EXTENSIONS	`More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Jul 01 2005`

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Last modified September 7 23:08 EDT 2008. Contains 143486 sequences.

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