520191

Appears in sequences

• Number of Bottleneck-Monge matrices with 2 rows. In the formula below, P = 2.at n=13A070050
• A129065 with v=n instead of v=1: recursive polynomial coefficient triangle.at n=55A136453
• Numbers of length n binary words with fewer than 9 0-digits between any pair of consecutive 1-digits.at n=19A145117
• Numbers k such that (k^2 - 81)/19 is a square.at n=10A167708
• Subsequence of A167708 whose indices are congruent to 1 mod 5, i.e., a(n) = A167708(5*n+1).at n=2A167774
• 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 497", based on the 5-celled von Neumann neighborhood.at n=18A282677
• 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 499", based on the 5-celled von Neumann neighborhood.at n=18A282681