id:A153432 - OEIS Search Results

Search: id:A153432

Displaying 1-1 of 1 results found.

page 1

Numbers m such that all ten numbers 10^k*m+1; k=0,1,...,9 are prime.

+0
3

15538734736, 28034367522, 41221375552, 89468493268, 92220460962, 95951017078, 105627706800, 108012908976, 147689513538, 161055865908, 177073756566, 181921823202, 185137153012, 192336309046, 212463686778 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`If m & n are in the sequence, k<10 and r=mn10^k -1 is prime then r has` `at least k+1 representations of the form p*q-(p+q)where p & q are prime.`
	LINKS	`Carlos Rivera, Two Bergot questions`
	CROSSREFS	`Cf. A153431, A153433.` `Sequence in context: A046060 A038545 A023050 this_sequence A022241 A101815 A113643` `Adjacent sequences: A153429 A153430 A153431 this_sequence A153433 A153434 A153435`
	KEYWORD	`nonn`
	AUTHOR	`Farideh Firoozbakht (mymontain(AT)yahoo.com), Mar 31 2009`

page 1

Search completed in 0.002 seconds

Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

AT&T Labs Research