1019120

Appears in sequences

• Nonprimes such that it takes exactly 5 iterations of reverse-and-add digits to generate a prime.at n=23A245210
• Number of n X 3 0..1 arrays with the number of 1's king-move adjacent to some 0 one less than the number of 0's adjacent to some 1.at n=7A284450
• T(n,k) = Number of n X k 0..1 arrays with the number of 1's king-move adjacent to some 0 one less than the number of 0's adjacent to some 1.at n=47A284455
• T(n,k) = Number of n X k 0..1 arrays with the number of 1's king-move adjacent to some 0 one less than the number of 0's adjacent to some 1.at n=52A284455