214651domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that the differences between the 5 consecutive primes starting with p are (6,6,4,6).at n=16A078967Let a(1)=1; for n>1, a(n)=nextprime((Pi/2)*a(n-1)).at n=24A084572Numbers x = concat(a,b) such that b^a begins with the digits of x.at n=20A266817Prime numbersat n=19183