28013

Appears in sequences

• Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 11.at n=21A051976
• Brilliant numbers k such that 2k+1 is also brilliant.at n=14A085649
• Sum of n-th prime squared and n-th perfect square.at n=37A106587
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 0), (0, 1, -1), (1, 0, 0), (1, 1, 1)}.at n=8A150454
• 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 233", based on the 5-celled von Neumann neighborhood.at n=14A279998