137438429184
domain: N
Appears in sequences
- Generalized Euler phi function (for p=2).at n=37A003473
- Number of reversible strings with n beads of 4 colors. If more than 1 bead, not palindromic.at n=18A032087
- a(n) = 2^(n+2)*(2^(n+1)-1).at n=17A059153
- Number of rationals in [0, 1) having exactly n preperiodic bits, then exactly n periodic bits.at n=18A119920
- Infraperfect numbers: a(n) = 2^(2*p - 1) - 2^p, where p is A000043(n).at n=6A139096
- G.f.: (32*x^7/(1-2*x) + 16*x^5 + 24*x^6)/(1-2*x^2).at n=38A204696
- a(n) = 3^n*A_{n, 1/3}(-1) where A_{n, k}(x) are the generalized Eulerian polynomials.at n=18A225116
- Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 493", based on the 5-celled von Neumann neighborhood.at n=36A288664
- Dirichlet convolution of A011782 [2^(n-1)] with A055615 (Dirichlet inverse of n).at n=37A349570