216006

Appears in sequences

• Number of (n+1)X(n+1) -11..11 symmetric matrices with every 2X2 subblock having sum zero and three distinct values.at n=11A211711
• Number T(n,k) of collections of nonempty multisets with a total of n objects of exactly k colors; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=52A255903
• Number of collections of nonempty multisets with a total of n objects of exactly seven colors.at n=2A255947
• Number of collections of nonempty multisets with a total of n+2 objects of exactly n colors.at n=7A255952