89023

Appears in sequences

• Terms k of A002977 such that both (k-1)/2 and (k-1)/3 are also terms of A002977.at n=21A085249
• A generalized recursion triangle sequence : m=1; t(n,k)=(k + m - 1)*t(n - 1, k, m) + (m*n - k + 1 - m)*t(n - 1, k - 1, m).at n=58A156184