122666

Appears in sequences

• Number of nonnegative integer 3 X 3 matrices with sum of elements equal to n, up to rotational symmetry.at n=15A054771
• Number of nonnegative integer 4 X 4 matrices with sum of elements equal to n, up to rotational symmetry.at n=8A054773
• Antidiagonal sums of triangle A123610.at n=17A123612
• Number of 1X7 integer matrices with each row summing to zero, row elements in nondecreasing order, rows in lexicographically nondecreasing order, and the sum of squares of the elements <= 2*n^2 (number of collections of 1 zero-sum 7-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=16A192694
• Number of distinct degree sequences among all connected simple graphs with n vertices whose degrees are consecutive integers.at n=16A382665