|
|
A031166
|
|
a(n) = prime(n+4) - prime(n).
|
|
11
|
|
|
9, 10, 12, 12, 12, 16, 14, 18, 18, 14, 16, 16, 18, 18, 20, 18, 14, 18, 16, 18, 24, 22, 20, 18, 12, 12, 24, 24, 28, 26, 22, 20, 20, 24, 18, 22, 22, 18, 24, 20, 18, 18, 20, 30, 30, 30, 22, 16, 14, 22, 24, 24, 28, 20, 20, 18, 14, 22, 30, 30, 30, 24, 24, 26, 34, 32, 22
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
FORMULA
|
|
|
MAPLE
|
A031166 := n -> ithprime(n+4)-ithprime(n);
|
|
MATHEMATICA
|
|
|
PROG
|
(Magma) [NthPrime(n+4)-NthPrime(n): n in [1..100] ]; // Vincenzo Librandi, Apr 23 2011
(Haskell) a031166_list = zipWith (-) (drop 4 a000040_list) a000040_list
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|