|
Search: id:A102891
|
|
|
| A102891 |
|
Start of the first string of exactly n consecutive pairs of cousin primes. |
|
+0
1
|
|
| 67, 37, 7, 97, 853, 1654863667, 14865673633, 128433097567
(list; graph; listen)
|
|
|
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 this_sequence A145175 A045808 A073523
Adjacent sequences: A102888 A102889 A102890 this_sequence 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
|
|
|
Search completed in 0.002 seconds
|
