121454

Appears in sequences

• Number of (n+2) X 9 0..1 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly three ways, and new values 0..1 introduced in row major order.at n=22A204753
• Number of 6 X n 0..1 arrays with every element equal to 0 or 1 horizontally or antidiagonally adjacent elements, with upper left element zero.at n=19A301795
• a(n) is the first Zagreb index of the Fibonacci cube Gamma(n).at n=14A306967