1920672
domain: N
Appears in sequences
- Number of 10 X 2 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 10 zero-sum 2-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=25A192711
- Triangle read by rows: T(n,k) = A059382(n)/(A059382(k)*A059382(n-k)).at n=49A238743
- Triangle read by rows: T(n,k) = A059382(n)/(A059382(k)*A059382(n-k)).at n=50A238743