291899domain: NPropertiesPrimalityPrimeyesAppears in sequencesPenta-Primes. Prime Numbers n as a Sum of 5 consecutive prime numbers (four twin primes and single prime number in between) are primes.at n=32A138397a(n) = F(n+8) - (1/6)*(n^4-2*n^3+26*n^2+47*n+132) where F(i) = Fibonacci numbers (A000045).at n=19A220889Prime numbersat n=25379