|
|
A092658
|
|
Number of consecutive prime runs of 8 primes congruent to 3 mod 4 below 10^n.
|
|
2
|
|
|
0, 0, 0, 0, 4, 11, 193, 2130, 21913, 214679, 2089627
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,5
|
|
LINKS
|
|
|
FORMULA
|
Generate the prime sequence with primes labeled 1 mod 4 or 3 mod 4. Add count of primes to sequence if just 8 primes occur before interruption by a prime congruent to 1 mod 4.
|
|
EXAMPLE
|
a(6)=11 because 11 sets of 8 primes occur below 10^6, each run interrupted by a prime congruent to 1 mod 4.
|
|
CROSSREFS
|
|
|
KEYWORD
|
more,nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|