519252

Appears in sequences

• a(n) = 2^n - C(n,0) - ... - C(n,4).at n=19A002664
• Unsigned row sums of triangle A152805.at n=11A152806
• Sum_{k=0..14} binomial(n,k).at n=19A220051
• Number of nX4 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.at n=4A283411
• Number of n X 5 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.at n=3A283412
• T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.at n=31A283415
• T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.at n=32A283415