291852

Appears in sequences

• Number of nX3 0..1 arrays with every repeated value in every row and column greater than the previous repeated value.at n=21A267714
• a(n) is the number of invertible 2 X 2 upper triangular matrices over Z_p where p = prime(n).at n=18A270775
• Integers m such that there exist one prime p and one positive integer k, for which the expression k^3 + k^2*p is a perfect cube m^3.at n=31A338610