-432

Appears in sequences

• Coefficients in expansion of Eisenstein series E_2 (also called E_1 or G_2).at n=17A006352
• Coefficients in expansion of Eisenstein series E_2 (also called E_1 or G_2).at n=10A006352
• arctan(sec(x)*arcsin(x))=x+2/3!*x^3-12/5!*x^5-432/7!*x^7+10000/9!*x^9...at n=3A012786
• Low temperature series for spin-1/2 Ising partition function on 4D simple cubic lattice.at n=19A030045
• Expansion of square of continued fraction 1/ ( 1+q/ ( 1+q^2/ ( 1+q^3/ ( 1+q^4/... )))).at n=43A055101
• Determinant of the n X n Hankel matrix whose entries are s_2 (i+j), 0 <= i, j < n, where s_2 is the sum of the base-2 bits.at n=39A056886
• Low-temperature magnetization expansion for Kagome net (Potts model, q=3).at n=10A057398
• McKay-Thompson series of class 24c for the Monster group.at n=43A062243
• Alternating sum sigma(1)-sigma(2)+sigma(3)-sigma(4)+...+((-1)^(n+1))*sigma(n).at n=45A068762
• Expansion of (1-x)/(1+2*x-2*x^3).at n=12A078060
• Expansion of (1-x)/(1+2*x+2*x^2-2*x^3).at n=9A078067
• Array of coefficients of P(n,x) = det (M(n,x)) where M(n,x) is the n X n matrix m(i,j)=x if i>j m(i,j)=1-x if i<=j.at n=33A079628
• Expansion of reciprocal of Hauptmodul for Gamma_0(18).at n=50A092848
• Expansion of eta(q)^8 / eta(q^2)^4 in powers of q.at n=53A096727
• Triangle of coefficients, read by row polynomials P_n(y), that satisfy the g.f.: A096651(x,y) = Product_{n>=1} 1/(1-x^n)^[P_n(y)/n], with P_n(0)=0 for n>=1.at n=39A096800
• G.f. satisfies: A(x) = 1/(1 + x*A(x^4)) and also the continued fraction: 1 + x*A(x^5) = [1; 1/x, 1/x^4, 1/x^16, 1/x^64, ..., 1/x^(4^(n-1)), ...].at n=37A101914
• Expansion of theta_4(q)^4 - theta_2(q)^4, where theta_2 and theta_4 are the Jacobi theta series.at n=17A103640
• Riordan array (1/(1+2*x), x*(1+x)/(1+2*x)^2).at n=22A123876
• Expansion of -1/(1 + x + x^2 + x^3 + x^4 - x^5).at n=32A124314
• Expansion of q^(-1) * (phi(q) / phi(q^9) - 1) / 2 in powers of q^3 where phi() is a Ramanujan theta function.at n=50A128111