-1870

Appears in sequences

• Signed Fibonomial triangle.at n=57A055870
• Riordan array (1/(1+x), x(1-x)/(1+x)^2).at n=62A110511
• Matrix logarithm of triangle A113287.at n=57A113290
• a(n) = Sum_{k=0..n} binomial(n, floor(k/2))*(-2)^(n-k).at n=9A127361
• A coefficients of characteristic polynomials of A_n Cartan matrices times their transposes: t(n,m,d)=If[ n == m, 2, If[n == m - 1 || n == m + 1, -1, 0]]. M(d)=t(n,m,d)*Transpose[t(n,m,d)].at n=24A158199
• Triangle read by rows: T(n,k) appears in the transformation Sum_{k=0..n} (k+1)*x^k = Sum_{k=0..n} T(n,k)*(x+3k)^k.at n=11A253384
• Irregular triangular array: row n is the linear recurrence signature of F(i)^n - F(i-1)^n, where F = A000045 (Fibonacci numbers).at n=49A379048