488880

Appears in sequences

• Least k such that prime(n)*(k^2) + prime(n)*k + 1 = m^2 = a square.at n=29A105263
• Triangle T(n,m) = coefficient of x^n in expansion of [x*(x+1)^(x+1)]^m = sum(n>=m, T(n,m) x^n*m!/n!).at n=39A202190
• Number of (n+2) X (1+2) 0..3 arrays with every consecutive three elements in every row and diagonal having one or two distinct values, and in every column and antidiagonal having two or three distinct values, and new values 0 upwards introduced in row major order.at n=2A252841
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every consecutive three elements in every row and diagonal having one or two distinct values, and in every column and antidiagonal having two or three distinct values, and new values 0 upwards introduced in row major order.at n=5A252844
• Number of (3+2)X(n+2) 0..3 arrays with every consecutive three elements in every row and diagonal having one or two distinct values, and in every column and antidiagonal having two or three distinct values, and new values 0 upwards introduced in row major order.at n=0A252847
• First element of the first maximal isospectral chain of length n.at n=3A330849
• First elements of maximal isospectral chains of length 4.at n=0A335083