196196

Appears in sequences

• Triangle T(n, k) = binomial(n, k)*binomial(n+1, k+1)*binomial(2*n, 2*k)/(n-k+1), read by rows.at n=30A155497
• Triangle T(n, k) = binomial(n, k)*binomial(n+1, k+1)*binomial(2*n, 2*k)/(n-k+1), read by rows.at n=33A155497
• Numbers other than prime powers divisible by the sum of the squares of their prime divisors.at n=21A190882
• a(n) = 7*a(n-1) - 14*a(n-2) + 7*a(n-3), a(0)=1, a(1)=3, a(2)=9.at n=10A215007
• Number of n X n 0..2 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.at n=3A232016
• Number of nX4 0..2 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.at n=3A232019
• T(n,k)=Number of nXk 0..2 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.at n=24A232023
• Number of 4Xn 0..2 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.at n=3A232026
• a(n) = concatenation of n^2 with itself.at n=13A253445