|
Search: id:A126096
|
|
|
| A126096 |
|
Primes which are the arithmetic mean of four successive primes. |
|
+0
1
|
|
| 127, 139, 149, 181, 241, 431, 967, 1021, 1031, 1061, 1597, 1759, 1913, 2113, 2437, 2593, 2833, 2953, 3769, 3793, 3947, 4219, 4261, 4463, 4603, 5011, 5869, 5923, 6449, 6701, 6959, 7103, 7489, 7549, 7727, 8273, 8803, 8839, 9137, 9241, 9421, 9931, 10069
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
EXAMPLE
|
181 is in the sequence because it is prime and it is the arithmetic mean of the consecutive primes 173, 179,181, and 191.
|
|
MAPLE
|
a:=proc(n) local nn: nn:=(ithprime(n)+ithprime(n+1)+ithprime(n+2)+ithprime(n+3))/4: if type(nn, integer)=true and isprime(nn)=true then nn else fi end: seq(a(n), n=1..1300); - Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 07 2007
|
|
CROSSREFS
|
Cf. A102655 = numbers which are the arithmetic mean of four successive primes.
Sequence in context: A102636 A075595 A133781 this_sequence A006285 A094933 A120654
Adjacent sequences: A126093 A126094 A126095 this_sequence A126097 A126098 A126099
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Zak Seidov (zakseidov(AT)gmail.com), Mar 03 2007
|
|
EXTENSIONS
|
More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 07 2007
|
|
|
Search completed in 0.002 seconds
|
