id:A108119 - OEIS Search Results

Search: id:A108119

Displaying 1-1 of 1 results found.

page 1

Numbers n such that prime(n) and prime(n+1) are congruent to 1 mod 10.

+0
1

42, 53, 82, 115, 125, 141, 172, 177, 193, 233, 279, 369, 399, 431, 474, 500, 575, 580, 585, 650, 651, 672, 708, 737, 751, 760, 795, 798, 820, 841, 842, 863, 873, 933, 1019, 1031, 1099, 1112, 1166, 1178, 1225, 1245, 1266, 1312, 1352, 1436, 1463, 1479, 1505 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`Prime(42)=181, prime(43)=191. This is the first pair of successive primes both ending by 1.`
	MATHEMATICA	`ra=Range[2000]; cnd=Mod[Prime[ # ], 10]==Mod[Prime[ #+1], 10]==1&; se=Select[ra, cnd]`
	CROSSREFS	`Sequence in context: A124189 A063998 A105346 this_sequence A116262 A156394 A083244` `Adjacent sequences: A108116 A108117 A108118 this_sequence A108120 A108121 A108122`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Jun 04 2005`

page 1

Search completed in 0.003 seconds

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

AT&T Labs Research