111623domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that the sum of the squares of digits of p equals the sum of digits of p^2.at n=32A290972a(n) = Sum_{k=0..floor(n/3)} binomial(2*n-k+1,n-3*k).at n=9A371773Prime numbersat n=10586