32246

Appears in sequences

• Number of 2 X 2 matrices with all elements in 0..n such that the sum of the elements is prime.at n=18A281550
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 355", based on the 5-celled von Neumann neighborhood.at n=28A287780
• Place n equally spaced points around the circumference of a circle and then, for each pair of points, draw two distinct circles, whose radii are the same as the first circle, such that both points lie on their circumferences. The sequence gives the total number of vertices formed.at n=22A371373
• a(n) = Sum_{k=0..n} 5^k * 3^(n-k) * binomial(n+k-1,k).at n=4A386763