214243

Properties

Appears in sequences

• Primes of the form 5n^2 - 2.at n=19A201784
• Number of nX4 0..1 arrays with each 1 adjacent to 2, 3 or 4 king-move neighboring 1s.at n=5A296823
• Number of nX6 0..1 arrays with each 1 adjacent to 2, 3 or 4 king-move neighboring 1s.at n=3A296825
• T(n,k)=Number of nXk 0..1 arrays with each 1 adjacent to 2, 3 or 4 king-move neighboring 1s.at n=39A296827
• T(n,k)=Number of nXk 0..1 arrays with each 1 adjacent to 2, 3 or 4 king-move neighboring 1s.at n=41A296827
• Prime numbers such that the product of their digits equals twice the number of their digits times the sum of their digits.at n=31A343701
• Prime numbersat n=19151