-80

Appears in sequences

• Bisection of A002470.at n=7A002286
• Glaisher's function W(n).at n=15A002470
• Glaisher's function G(n) (18 squares version).at n=2A002609
• Logarithmic numbers.at n=3A002742
• Magnetization series for diamond.at n=5A002930
• Triangle of coefficients of Euler polynomials 2^n*E_n(x) (exponents in increasing order).at n=19A004174
• Triangle of coefficients of Euler polynomials 2^n*E_n(x) (exponents in decreasing order).at n=16A004175
• Expansion of 1 / (Sum_{n=-oo..oo} x^(n^2))^3.at n=3A004404
• Expansion of e.g.f. (1+x)^sin(x).at n=5A007118
• Triangle of coefficients of Chebyshev polynomials U_n(x).at n=14A008312
• Expansion of sin(tan(sin(x))).at n=3A009500
• Expansion of the e.g.f. sin(x)*(1+x).at n=80A009531
• a(n) = binomial(2*n, n)^2 / (1-2*n).at n=3A010370
• arctanh(sin(arcsinh(x)))=x+4/5!*x^5-80/7!*x^7+4240/9!*x^9-342400/11!*x^11...at n=3A012042
• arcsinh(sin(arctanh(x)))=x+4/5!*x^5-80/7!*x^7-3440/9!*x^9-764800/11!*x^11...at n=3A012057
• arcsinh(arcsin(x)*sin(x))=2/2!*x^2-80/6!*x^6+1344/8!*x^8+256768/10!*x^10...at n=2A012334
• arctan(arctan(x)*tan(x))=2/2!*x^2-80/6!*x^6-2688/8!*x^8+260608/10!*x^10...at n=3A012447
• tanh(arctan(x)*tan(x))=2/2!*x^2-80/6!*x^6-2688/8!*x^8+18688/10!*x^10...at n=2A012451
• exp(arcsinh(x)*log(x+1))=1+2/2!*x^2-3/3!*x^3+16/4!*x^4-80/5!*x^5...at n=5A012572
• sin(arcsinh(x)*sinh(x))=2/2!*x^2-80/6!*x^6-1344/8!*x^8+14848/10!*x^10...at n=3A012647