49406

Appears in sequences

• Octahedral numbers: a(n) = n*(2*n^2 + 1)/3.at n=42A005900
• "BFJ" (reversible, size, labeled) transform of 2,2,2,2...at n=9A032038
• a(n) = Sum_{k=1..n} Sum_{j=1..k} (prime(k) - prime(j))^2.at n=14A062022
• The sum over all bitstrings b of length n of the number of runs in b not immediately followed by a longer run.at n=12A208902
• 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 115", based on the 5-celled von Neumann neighborhood.at n=30A285843
• Partial sums of the even triangular numbers (A014494).at n=41A352115