136337domain: NPropertiesPrimalityPrimeyesAppears in sequencesG.f.: A(x) = Sum_{n>=0} x^(n*(n+1)/2) / Product_{k=1..n} (1-x^k)^k.at n=39A206138Smallest of four consecutive primes in arithmetic progression with common difference 42 and all digit sums prime.at n=27A277607Prime numbersat n=12695