31611

Appears in sequences

• a(n) = (2*n - 1)*(11*n^2 - 11*n + 6)/6.at n=20A063492
• a(n) is the smallest composite n-Lehmer number.at n=10A234936
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 670", based on the 5-celled von Neumann neighborhood.at n=28A289360