142606336

Appears in sequences

• a(n) = (3*n-1) * 2^(n-2).at n=22A053220
• a(n) = (2*n+1) * (2*n)! / (sqrt(4*(n+1)*Product_{k=1..2*n+1} lcm(k, 2*n+2-k))).at n=31A082292
• Denominators of the Taylor series of arccosh(z)/sqrt(2(x-1)) about 1.at n=8A091019
• a(n) = 17*2^n.at n=23A110287
• a(n) = n^6*(n + 1)/2.at n=16A168526
• 3X3 square grid graph coloring a rectangular array: number of nX1 0..8 arrays where 0..8 label nodes of the square grid graph and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.at n=16A223372
• Number of solutions to Sum_{i=1...n} x_i^2 == 1 (mod 8) with x_i in 0..7.at n=9A229138
• Numerator of 2n/v(n)^2, where v(1) = 0, v(2) = 1, and v(n) = v(n-1)/(n-2) + v(n-2) for n >= 3; limit of 2n/v(n)^2 is Pi.at n=16A239224
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 398", based on the 5-celled von Neumann neighborhood.at n=29A288015