-2160

Appears in sequences

• Coefficients in expansion of Eisenstein series E_2 (also called E_1 or G_2).at n=40A006352
• a(n) = 3^n - n^7.at n=3A024030
• Expansion of 1/(1+x^2-2*x^3).at n=25A077912
• Triangle of integers used to compute column sequences of array A078739 ((2,2)-Stirling2).at n=17A089511
• Expansion of phi(q^4) / phi(q) in powers of q where phi() is a Ramanujan theta function.at n=15A112128
• Upper half of Hankel determinant number wall for A004148.at n=71A123634
• Fifth column (m=4) of triangle A128494.at n=30A128499
• Fifth column (m=4) of triangle A128494.at n=31A128499
• Integral form of A053120 :Triangle of coefficients of Integral form Chebyshev's T(n, x) polynomials (powers of x in increasing order); Much improved version by use of the integro-differential recursive form over a previous attempt.at n=49A136265
• a(n) = 13 + 12*n - n^2.at n=53A136316
• Triangular array of the coefficients of the sequence of Abel polynomials A(n,x) := x*(x-n)^(n-1).at n=24A137452
• Triangle T(n,k)= n! if k=0, T(n,k) = -(n-k)!*A003319(k) if k > 0.at n=48A142156
• Expansion of K(k) * (6 * E(k) - (1 + 4*k'^2) * K(k)) / (Pi/2)^2 in powers of q where E(k), K(k) are complete elliptic integrals and q = exp(-Pi * K(k') / K(k)).at n=40A143337
• A triangle related to the GF(z) formulas of the rows of the ED2 array A167560.at n=22A167568
• Array A(i,j) read by antidiagonals: A(i,j) is the (2i-1)-th derivative of sin(sin(sin(...sin(x)))) nested j times evaluated at 0.at n=24A212261
• Express the Sum_{n>=0} p(n)*x^n, where p(n) is the partition function, as a product Product_{k>=1} (1 + a(k)*x^k).at n=29A220420
• Expansion of a(q)^2 * b(q) in powers of q where a(), b() are cubic AGM theta functions.at n=18A231948
• Expansion of b(q)^3 - 3*c(q)^3 in powers of q where b(), c() are cubic AGM theta functions.at n=6A231961
• Expansion of b(q)^3 - (1/3)*c(q)^3 in powers of q where b(), c() are cubic AGM theta functions.at n=18A231962
• Jump Sum Recursion Triangle.at n=18A244608