202031

Properties

Appears in sequences

• a(n+1) is the smallest prime > a(n) such that the digits of a(n) are all (with multiplicity) contained in the digits of a(n+1), with a(1)=2.at n=19A242904
• a(n) = Sum_{k=0..floor(n/3)} (k+1) * binomial(2*k,2*n-6*k).at n=30A382496
• Prime numbersat n=18151