647167

Appears in sequences

• Björner-Welker sequence: 2^n*(n^2 + n + 2) - 1.at n=12A055580
• 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 533", based on the 5-celled von Neumann neighborhood.at n=20A288980
• Square array read by antidiagonals: T(n,k) = Sum_{j = 0..n*k} binomial(n+j-1,j)*2^j; n,k >= 0.at n=32A333560