375251domain: NPropertiesPrimalityPrimeyesAppears in sequencesInitial primes in prime triples (p, p+2, p+6) preceding the maximal gaps in A201598.at n=17A201599Expansion of (1 + x + 21*x^2 + x^3 + x^4)/(1 - x)^5.at n=24A257602Prime numbersat n=31930