27487790695
domain: N
Appears in sequences
- a(n) = 3*a(n-1) + 4*a(n-2), a(0)=a(1)=1.at n=18A102900
- a(n) = a(n-1) + 2^(k(n)), where k(n) is the n-th term of the sequence formed by k(1)=0 together with the numbers A042963.at n=18A113870
- Expansion of -x^2*(x^3+x-1) / ((x-1)*(x+1)*(2*x-1)*(x^2+1)).at n=37A256494
- Decimal representation of the n-th iteration of the "Rule 214" elementary cellular automaton starting with a single ON (black) cell.at n=17A267805
- a(n) = (4^(n+1) + (-1)^n + 5)/10.at n=18A363773