350776

Appears in sequences

• Number of n X 2 0..2 arrays with no element equal the average of immediate neighbors vertically above and horizontally left of it.at n=7A208439
• T(n,k)=Number of nXk 0..2 arrays with no element equal the average of immediate neighbors vertically above and horizontally left of it.at n=37A208445
• a(n) = Sum_{1 <= x_1, x_2, x_3 <= n} gcd(x_1, x_2, x_3, n)^5.at n=11A372930