1946157056

Appears in sequences

• a(n) = (n+2)*2^(n-1).at n=27A001792
• a(n) = Sum_{k=0..floor(n/2)} k*binomial(n,2*k) = floor(n*2^(n-3)).at n=29A049610
• Inverse binomial transform of A026741.at n=29A168150
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 437", based on the 5-celled von Neumann neighborhood.at n=30A288299
• Larger of amicable numbers pair (m, n) such that n = H(m) and m = H(n) where H(n) = A074206(n) is the number of ordered factorizations of n.at n=2A318252