200407domain: NPropertiesPrimalityPrimeyesAppears in sequencesIndices of primes in sequence defined by A(0) = 23, A(n) = 10*A(n-1) + 33 for n > 0.at n=26A101964Prime powers that are equal to the sum of the first k prime powers (not including 1) for some k.at n=35A364797Prime numbersat n=18020