916658

Appears in sequences

• Numbers n such that the sum_i (d_i^i) of the i-th powers of their sorted divisors d_1< d_2<...< n is prime.at n=23A180852
• Numbers the sum of whose even divisors is 2 times a prime.at n=26A195334
• Numbers such that the difference between the sum of the even divisors and the sum of the odd divisors is prime.at n=28A195382
• Number of (n+2)X6 0..1 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..1 introduced in row major order.at n=4A203919
• Number of (n+2)X7 0..1 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..1 introduced in row major order.at n=3A203920
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..1 introduced in row major order.at n=31A203923
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..1 introduced in row major order.at n=32A203923
• Even numbers such that the sum of the odd divisors is a prime p and the sum of the even divisors is 2p.at n=19A273459