217500

Appears in sequences

• Number of symmetric types of (4,2n)-hypergraphs under action of complementing group C(4,2).at n=14A029941
• Difference between A095765 and A095766.at n=28A113858
• Number of free generators of degree n of symmetric polynomials in 5-noncommuting variables.at n=10A124293
• Number of 12 X 12 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.at n=2A156410
• Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 2.at n=10A156430