270335

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 421", based on the 5-celled von Neumann neighborhood.at n=19A282076
• Expansion of (1/(1 - x)) * Sum_{k>=0} x^(2*k+1) / Product_{j=1..2*k+1} (1 - x^j).at n=45A306145
• Number of subsets of {1,...,n + 1} containing n + 1 and such that all positive differences of distinct elements are distinct.at n=40A308251