83871

Appears in sequences

• Number of 1X6 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 6-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=20A192693
• Growth series for affine Coxeter group (or affine Weyl group) D_4.at n=49A266759
• The difference between the number of partitions of 2n into odd parts (A000009) and the number of partitions of 2n into even parts (A035363).at n=44A282893