129947

Appears in sequences

• Number of n X 1 0..6 arrays with no element equal to another at a city block distance of exactly two, and new values 0..6 introduced in row major order.at n=10A222776
• a(n) = floor(sqrt(F(n+2)^2 + F(n)^2)), where F(n) = A000045(n).at n=24A245271