133128

Appears in sequences

• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 531", based on the 5-celled von Neumann neighborhood.at n=17A282953
• a(n) = Sum_{k=0..floor(n/4)} (-1)^k * binomial(n+3,4*k+3) * Catalan(k).at n=20A360050
• Lexicographically earliest sequence of distinct integers such that the concatenated binary expansions of the terms is A010051.at n=33A370069