67368

Appears in sequences

• Triangular array read by rows: T(n,k) is the number of ordered set partitions of {1,2,...,n} with exactly k singletons, n>=0, 0<=k<=n.at n=38A187784
• Number of city-block distance 1, pressure limit 2 movements in an n X 2 array with each element moving exactly one horizontally or vertically, no element acquiring more than two neighbors, and without 2-loops.at n=7A216985
• T(n,k)=Number of city-block distance 1, pressure limit 2 movements in an nXk array with each element moving exactly one horizontally or vertically, no element acquiring more than two neighbors, and without 2-loops.at n=37A216991
• T(n,k)=Number of city-block distance 1, pressure limit 2 movements in an nXk array with each element moving exactly one horizontally or vertically, no element acquiring more than two neighbors, and without 2-loops.at n=43A216991
• Integers n such that n^2 = 2*x*(y-x), where x and y are consecutive terms in A014574.at n=29A255230