OFFSET
1,1
LINKS
V. Raman, Table of n, a(n) for n = 1..10000
FORMULA
a(n) >> n log^2 n.
a(n) = A216329(n) + 1.
PROG
(PARI) for(i=2, 1500, if(isprime(10*i-9)==isprime(10*i+1)&&isprime(10*i-7)==isprime(10*i+3)&&isprime(10*i-3)==isprime(10*i+7)&&isprime(10*i-1)==isprime(10*i+9)&&isprime(10*i+1)+isprime(10*i+3)+isprime(10*i+7)+isprime(10*i+9)>=1, print1(i", ")))
CROSSREFS
KEYWORD
nonn,base
AUTHOR
V. Raman, Dec 07 2012
STATUS
approved