42104

Appears in sequences

• Quadrinomial coefficients.at n=18A005719
• Central terms of triangle A124328; a(n) = A124328(2n+1,n+1) for n>=0.at n=7A124889
• Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..1 introduced in row major order.at n=16A204373
• Number of n X 5 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.at n=1A231938
• T(n,k)=Number of nXk 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.at n=16A231940
• Number of 2 X n 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.at n=4A231941
• Numbers k such that k divides A340180(k).at n=10A337189