OFFSET
1,1
COMMENTS
Note that a(1)=69=A131109(k=5).
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
FORMULA
a(n) >> n log n. - Charles R Greathouse IV, Nov 02 2015
MATHEMATICA
Flatten[Position[Partition[Table[If[PrimeOmega[n]==2, 1, 0], {n, 2000}], 6, 1], _?(#=={1, 0, 0, 0, 0, 1}&)]] (* Harvey P. Dale, Dec 16 2015 *)
PROG
(PARI) is(n)=if(n%4==1, isprime((n+5)/2) && bigomega(n)==2, n%4==2 && isprime(n/2) && bigomega(n+5)==2) && bigomega(n+1)!=2 && bigomega(n+2)!=2 && bigomega(n+3)!=2 && bigomega(n+4)!=2 \\ Charles R Greathouse IV, Nov 02 2015
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Nov 02 2015
STATUS
approved