|
| |
|
|
A102891
|
|
Start of the first string of exactly n consecutive pairs of cousin primes.
|
|
0
| | |
|
|
|
OFFSET
| 1,1
|
|
|
LINKS
| Eric Weisstein's World of Mathematics, Cousin Primes
|
|
|
EXAMPLE
| a(5) = 853 as the consecutive primes 853, 857, 859, 863, 877, 881, 883, 887, 907 and 911 form exactly five consecutive pairs (p, p+4) of cousin primes and no smaller string of consecutive primes has this property.
|
|
|
CROSSREFS
| Cf. A087641 (similar for twin primes), A095969, A095970, A095971.
Sequence in context: A051323 A112506 A033387 * A145175 A196251 A169936
Adjacent sequences: A102888 A102889 A102890 * A102892 A102893 A102894
|
|
|
KEYWORD
| more,nonn
|
|
|
AUTHOR
| Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jan 16 2005
|
|
|
EXTENSIONS
| a(6)-a(8) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Sep 03 2008
|
| |
|
|