-328

Appears in sequences

• Expansion of e.g.f. cos(x)*cos(tanh(x)), even powers only.at n=3A009100
• Expansion of e.g.f. cos(x)/cosh(sin(x)), even powers only.at n=3A009109
• Glaisher's chi_4(n).at n=57A030212
• Discriminants of quadratic number fields Q(sqrt -n) for n squarefree.at n=50A033197
• Low temperature series associated with square lattice.at n=6A047710
• McKay-Thompson series of class 20d for Monster.at n=23A058559
• Expansion of (1-x-x^N)/((1-x)(1-x^2)(1-x^3)...(1-x^N)) for N = 6.at n=29A060025
• Expansion of Gaussian product of arithmetic mean and Lehmer mean evaluated at 1 + 4*x.at n=11A078801
• Triangle, read by rows, where the n-th row lists the (2n+1) coefficients of (1 + x - 2*x^2)^n.at n=71A084612
• Triangle table from number wall of reversion of Fibonacci numbers.at n=39A085143
• Triangle T(n,k), read by rows, formed by setting all entries in the zeroth column and in the main diagonal ((n,n) entries) to 1 and defining the rest of the entries by the recursion T(n,k) = T(n-1,k) - T(n,k-1).at n=43A096470
• G.f. satisfies: A(x) = 1/(1 + x*A(x^6)) and also the continued fraction: 1+x*A(x^7) = [1;1/x,1/x^6,1/x^36,1/x^216,...,1/x^(6^(n-1)),...].at n=50A101916
• Expansion of -2*x/(1 - 4*x + 2*x^2).at n=5A106731
• Sequence is {a(4,n)}, where a(m,n) is defined at sequence A110665.at n=12A110669
• Triangle built from partial sums of Catalan numbers multiplied by powers of nonpositive numbers.at n=37A112707
• Sum(mu(i)*sigma(j): i+j=n), with mu=A008683 and sigma=A000203.at n=60A112964
• Inverse binomial transform of lucky numbers (A000959).at n=9A123593
• Triangular sequence of coefficients of a polynomial recursion for C_n and B_n Cartan matrices: p(x, n) = (-2 + x)*p(x, n - 1) - p(x, n - 2) p(x,n)=x2-4*x+4-m:m=4;(related sequence: A_n:m=1,G_n,m=3,B_n,C_n,m=2) This triangular sequence is an extension to the Cartan pattern of matrices.at n=41A136329
• Expansion of q * (psi(q^5) / psi(q))^2 in powers of q where psi() is a Ramanujan theta function.at n=13A138519
• Transform of Fibonacci(n+1) with Hankel transform (-1)^binomial(n+1,2) * Fibonacci(n+1).at n=16A156906