128592

Appears in sequences

• Number of length 1+4 0..n arrays with some disjoint pairs in every consecutive five terms having the same sum.at n=10A247928
• Number of 2 X 2 matrices having entries in {0,1,...,n} and determinant in the closed interval [-n,n] with no entry repeated.at n=35A279063
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 286", based on the 5-celled von Neumann neighborhood.at n=32A287480
• Irregular triangle read by rows: T(n,k) = number of k-irredundant sets in the n X n rook graph.at n=27A290823
• p-INVERT of the positive integers, where p(S) = 1 - 6*S^2.at n=8A290911
• Integers k such that there exists an integer 0<m<k such that (1/sigma(m)^2 + 1/sigma(k)^2)*(m+k)^2 = 1.at n=30A383964