-387420489domain: ZAppears in sequencesBilinear recursive sequence.at n=16A078530a(n) = (1-n)^(n-1).at n=10A177885Expansion of (4+3*x)/(1+3*x).at n=17A256096Fourier coefficients of the modular form (1/t_{3A}) * sqrt( 1-108/t_{3A} ) * F_{3A}^14.at n=27A341560Dirichlet inverse of A133494, 3^(n-1).at n=18A349453