id:A075285 - OEIS Search Results

Search: id:A075285

Displaying 1-1 of 1 results found.

page 1

Interprimes which are of the form s*prime, s=10.

+0
1

30, 50, 170, 370, 590, 610, 730, 1370, 1390, 1910, 1990, 2290, 3310, 3730, 4010, 4990, 5410, 6070, 6590, 7190, 7870, 8770, 9470, 9970, 10610, 11090, 11810, 11930, 12970, 14470, 15230, 15310, 16270, 16570, 16990, 17330, 18790, 19130, 20110 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Interprimes of the form s*prime are in A075277-A075296 ( s = 2 - 21 ). Case s=1 is impossible.`
	EXAMPLE	`370 is an interprime and 370/10 = 37 is prime.`
	MATHEMATICA	`s=10; Select[Table[(Prime[n+1]+Prime[n])/2, {n, 2, 4000}], PrimeQ[ #/s]&]`
	CROSSREFS	`Cf. A075277-A075296.` `Sequence in context: A075290 A004222 A004223 this_sequence A039349 A043172 A043952` `Adjacent sequences: A075282 A075283 A075284 this_sequence A075286 A075287 A075288`
	KEYWORD	`easy,nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Sep 12 2002`

page 1

Search completed in 0.002 seconds

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research