473088

Appears in sequences

• Reciprocal Chebyshev polynomial of second kind evaluated at 4 multiplied by (-1)^n.at n=11A025171
• 7-fold convolution of A000302 (powers of 4).at n=5A054337
• Coefficients of power series that satisfies A(x)^4 - 16x*A(x)^5 = 1, A(0)=1.at n=5A078533
• Determinant of n X n matrix M(i,j) = binomial(2i-1,j), (i,j) ranging from 1 to n.at n=6A086229
• a(n) = 4^n*binomial(2*n+1, n).at n=5A098400
• Expansion of e.g.f. BesselI(0,4*x)+BesselI(1,4*x)/2.at n=11A098664
• Triangle T, read by rows, where matrix power T^-2 has -2^(n+1) in the secondary diagonal: [T^-2](n+1,n) = -2^(n+1), with all 1's in the main diagonal and zeros elsewhere.at n=21A117265
• E.g.f. satisfies: A(x) = x + arcsinh(A(x))^2.at n=6A185190
• Triangular array: the fusion of polynomial sequences P and Q given by p(n,x) = (x+2)^n and q(n,x) = (2*x+1)^n.at n=38A193728
• Mirror of the triangle A193728.at n=42A193729
• Triangle read by rows, T(n, k) = 4^n*[x^k]hypergeometric([3/2, -n], [3], -x), n>=0, 0<=k<=n.at n=41A254632
• G.f.: x^2 * f''(x), where f(x) = Product_{k>=1} (1 + x^k).at n=33A278407
• 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 475", based on the 5-celled von Neumann neighborhood.at n=18A288501
• a(n) is the number of subsets of {1..n} that contain exactly 5 odd numbers.at n=20A331420