91960

Appears in sequences

• Decagonal numbers divisible by 10.at n=31A117797
• Number of 2 X 2 matrices with entries in {0,1,...,n} and odd trace with no elements repeated.at n=21A279905
• Triangle read by rows: T(n,k) = Stirling2(n+1,k)/binomial(k+1,2) if n-k is even, else 0 (1 <= k <= n).at n=59A363041