320168

Appears in sequences

• Maximal term in trajectory of P under the 'Px+1' map, where P = n-th prime, or -1 if no such term exists.at n=29A057689
• Rectangular array T(n,m), read by upward antidiagonals: T(n,m) is the number of difunctional (regular) binary relations between an n-element set and an m-element set.at n=57A265417
• Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 5 neighboring 1s.at n=4A297800
• T(n,k) = Number of n X k 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 5 neighboring 1's.at n=49A297802
• Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 5 neighboring 1s.at n=5A297805