5412961domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that (p+1)/2, (p+2)/3, (p+3)/4 and (p+4)/5 are also prime.at n=21A204592Expansion of e.g.f. exp(x/(1 + x^4)).at n=10A373541Prime numbersat n=375186