81720

Appears in sequences

• Denominators of continued fraction convergents to sqrt(994).at n=11A042925
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the symmetric matrix A202670 based on A000290 (the squares); by antidiagonals.at n=29A202671
• Numbers n such that s! + n^2 and (s + 2)! + n^2 are squares for some s, ordered by s.at n=6A217550
• Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape I; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=49A247703
• First term of n-th difference sequence of (floor(k*r)), r = sqrt(2/3), k >= 0.at n=19A325731