78382080

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*12^j.at n=31A038266
• A simple context-free grammar in a labeled universe: labeled version of A052706.at n=8A052729
• Triangular sequence based on the coefficients of the Blaschke product like tan(3u) polynomial function: p(x,t)=Exp[x*t]*(-t)*(3 - t^2)/(-1 + 3*t^2).at n=37A137436
• The number of positive integer sequences of length n with no duplicate substrings of length greater than 1, every number different from its neighbors, and a minimal product (= A282169(n)).at n=23A284434
• Fourier coefficients of Eisenstein series of degree 2 and weight 4: a(n) = coefficient of the matrix [n, 1/2; 1/2, 1] with determinant n-1/4.at n=21A323990
• Denominators of coefficients in a series for log(2 Pi).at n=9A332539