230387

Properties

Appears in sequences

• Smallest of four consecutive primes whose sum is a square.at n=22A206280
• Number of n X n 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).at n=3A208346
• Number of n X 4 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).at n=3A208349
• T(n,k) is the number of n X k 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).at n=24A208353
• Prime numbersat n=20474