-5670

Appears in sequences

• n-th derivative of x^(1/x) at x=1.at n=7A008405
• Expansion of e.g.f. tan(tan(x) + log(x+1)).at n=6A012927
• Expansion of e.g.f. tan(arctanh(x) + log(x+1)).at n=6A013158
• Triangle of trinomial logarithmic coefficients: A027907(n,k) = Sum_{i=0..k} T(k,i)*n^i/k!.at n=62A136590
• Triangular array read by rows: e.g.f. sqrt(1-z^2)*exp(x*z)/(1+z).at n=49A138022
• Triangle of 3-restricted Stirling numbers of the first kind (T(n,k), 0 <= k <= n), read by rows.at n=39A144633
• Triangle of 3-restricted Stirling numbers of the first kind (T(n,k), 1 <= k <= n), read by rows.at n=30A144634
• Column 3 of triangle in A144633.at n=8A144638
• A triangle related to the a(n) formulas of the rows of the ED4 array A167584.at n=20A167591
• Coefficient array for orthogonal polynomials P(n,x)=x*P(n-1,x)-(2*floor((n+2)/2)-3)*P(n-2,x), P(0,x)=1,P(1,x)=x.at n=67A178107
• A triangle whose rows add up to the numerators of the Bernoulli numbers (with B(1) = 1/2). T(n, k) for n >= 0, 0 <= k <= n.at n=24A194587
• T(n, k) is the coefficient of x^k of the polynomial p(n) which is defined as the scalar part of P(n) = Q(x, 1, 1, 1) * P(n-1) for n > 0 and P(0) = Q(1, 0, 0, 0) where Q(a, b, c, d) is a quaternion, triangle read by rows.at n=59A319234
• G.f. A(x) satisfies A(A(A(A(A(A(x)))))) = Sum_{k>=1} k * 18^(k-1) * x^k.at n=5A372522