-531441

Appears in sequences

• Bilinear recursive sequence.at n=14A078530
• Expansion of (1+2*x)/(1+3*x+3*x^2).at n=25A123877
• a(n) = 3*a(n-2) for n > 2; a(1) = 3, a(2) = -1.at n=25A162852
• Expansion of (4+3*x)/(1+3*x).at n=11A256096
• Fourier coefficients of the modular form (1/t_{3A}) * sqrt(1 - 108/t_{3A}) * F_{3A}^10.at n=27A341555
• Dirichlet inverse of A133494, 3^(n-1).at n=12A349453