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A309671
Primes prime(m) such that G = prime(m-1)# - prime(m) is prime.
0
7, 11, 13, 17, 23, 83, 89, 97, 151, 373, 433, 857, 4013, 8821, 12959
OFFSET
1,1
COMMENTS
G = prime(n-1)# - prime(n) where G is a prime is a special case of A090188 where (k=1).
EXAMPLE
7 is a term because 23 = 2*3*5 - 7 is prime.
PROG
(PARI) primo(p) = my(ip=primepi(p)); factorback(primes(ip)); \\ A002110
isok(p) = isprime(p) && isprime(primo(precprime(p-1)) - p);
CROSSREFS
KEYWORD
nonn,more
AUTHOR
STATUS
approved