134217726
domain: N
Appears in sequences
- a(n) = 2^n - 2.at n=27A000918
- a(n) = 2^(2*n+1) - 2.at n=13A002446
- a(n) = 2*a(n-1) if n odd else 2*a(n-1) + 6.at n=25A014131
- Number of ways of 3-coloring an annulus consisting of n zones joined like a pearl necklace.at n=26A092297
- Expansion of (1-x+2x^2)/((1-x)*(1-2x)).at n=26A095121
- a(n) = 2^n+(-1)^n-1.at n=27A099430
- A Horadam-Jacobsthal sequence.at n=26A101622
- Number of palindromes (in base 4) below 4^n.at n=25A117863
- Row sums of triangle A134066.at n=25A134067
- a(n) = 2^n - (3-(-1)^n)/2.at n=27A141023
- A007318 * A143098.at n=27A143100
- Numerator of Euler(n,3).at n=26A157805
- a(n) is the period of a 2 X 4n rectangular oscillator in the 2 X 2 (B36/S125) Life-like cellular automaton.at n=25A160657
- Decimal representation of the n-th iteration of the "Rule 15" elementary cellular automaton starting with a single ON (black) cell.at n=13A266302
- Decimal representation of the n-th iteration of the "Rule 229" elementary cellular automaton starting with a single ON (black) cell.at n=13A267851
- The period of an n X 1 rectangular oscillator in the B1/S Life-like cellular automaton.at n=51A268754
- Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 617", based on the 5-celled von Neumann neighborhood.at n=29A283349
- Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 633", based on the 5-celled von Neumann neighborhood.at n=26A283403
- Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 657", based on the 5-celled von Neumann neighborhood.at n=26A283591
- Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 721", based on the 5-celled von Neumann neighborhood.at n=26A283709