39225

Appears in sequences

• a(n) = Sum_{k=1..n} n! * n^(n-k+1) / (n-k)!.at n=5A036360
• Spiro-tetranacci numbers: a(n) = sum of four previous terms that are nearest when terms arranged in a spiral.at n=27A092369
• 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 353", based on the 5-celled von Neumann neighborhood.at n=36A281287
• Numbers k such that {k + 2, k + 4} and {k^2 + 2, k^2 + 4} are both twin prime pairs.at n=21A284014
• Numbers k such that there are precisely 6 groups of orders k and k + 1.at n=5A295992
• Numbers of squares formed by this procedure on n-th step: Step 1, draw a unit square. Step n, draw a unit square with center in every intersection of lines of the figure in step n-1.at n=24A336288