246121domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes whose product of digits equals the number of digits times the sum of digits.at n=25A064155Numbers m such that A076644(m) = floor((2/3)*m*(sqrt(m)+1)).at n=34A076660Expansion of Product_{k>=1} (1 + x^(3*k-1))^(3*k-1) * (1 + x^(3*k-2))^(3*k-2).at n=32A262924Prime numbersat n=21720