-720

Appears in sequences

• Coefficients in expansion of Eisenstein series E_2 (also called E_1 or G_2).at n=29A006352
• Triangle T(n,k) of arctangent numbers: expansion of arctan(x)^n/n!.at n=12A008309
• Expansion of log(1+x)*exp(sinh(x)).at n=8A009418
• E.g.f. log(1 + x/cos(x)).at n=6A009442
• Expansion of e.g.f. tan(x)/cos(log(1+x)).at n=6A009754
• exp(arcsinh(arctan(x)))=1+x+1/2!*x^2-2/3!*x^3-11/4!*x^4+24/5!*x^5...at n=7A012251
• Expansion of Product_{m>=1} 1/(1 + m*q^m)^5.at n=9A022697
• Triangle formed from expansion of (x-1)*(x+2)*(x-3)*...*(x+-n).at n=27A047991
• Triangle T(n,k) of arctangent numbers: expansion of arctan(x)^n/n!.at n=21A049218
• Generalized Stirling number triangle of first kind.at n=15A049444
• Generalized Stirling number triangle of first kind.at n=6A051379
• Triangle formed by coefficients of numerator polynomials defined by iterating f(u,v) = 1/u - x*v applied to a list of elements {1,2,3,4,...}.at n=27A053495
• Regard triangle of rencontres numbers (see A008290) as infinite matrix, compute inverse, read by rows.at n=58A055137
• Exponential reciprocal of A055924.at n=21A055925
• Image of Euler totient function (A000010) under "little Hankel" transform that sends [c_0, c_1, ...] to [d_0, d_1, ...] where d_n = c_n^2 - c_{n+1}*c_{n-1}.at n=34A056228
• Coefficient triangle of generalized Laguerre polynomials n!*L(n,4,x) (rising powers of x).at n=18A062140
• Triangular table of coefficients of the Hermite polynomials, divided by 2^floor(n/2).at n=63A067613
• Coefficients of the polynomials in the numerator of 1/(1+x^2) and its successive derivatives, starting with the constant term.at n=21A076256
• Coefficients of the polynomials in the numerator of 1/(1+x^2) and its successive derivatives, starting with the constant term.at n=20A076256
• Coefficients of the polynomials in the numerator of 1/(1+x^2) and its successive derivatives, starting with the constant term.at n=16A076256