4797091328
domain: N
Appears in sequences
- a(n) = 4*a(n-1) - 2*a(n-2) with a(0) = 1, a(1) = 4.at n=18A007070
- Coefficient of x^2 in (1+x)^n mod 1+x^4.at n=38A099588
- Coefficient of x^2 in (1+x)^n mod 1+x^4.at n=39A099588
- The number of 1 by n Haunted Mirror Maze puzzles with a unique solution ending with a mirror, where mirror orientation is fixed.at n=19A204089
- Expansion of (1+2*x-x^3)/(1-4*x^2+2*x^4).at n=36A217730