311997

Appears in sequences

• a(n) is the number of noncomposites (primes or 1) that are n digits long in balanced ternary notation.at n=14A233919
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 566", based on the 5-celled von Neumann neighborhood.at n=18A283063
• Coefficients of the power series expansion at p=1 of the time constant C(-3,p) for last passage percolation on the complete directed acyclic graph, where the edges' weights are equal to 1 or -3 with respective probabilities p and 1-p.at n=23A373091