274877906943
domain: N
Appears in sequences
- Divisors of 2^38 - 1.at n=7A003544
- a(n) = 4^n - 1.at n=19A024036
- Jacobsthal gap sequence.at n=38A080924
- Resultant of the polynomial x^n-1 and the Chebyshev polynomial of the second kind U_2(x).at n=18A085435
- a(n) = 0^n + 4^n - 1.at n=19A103454
- 2^(n-th semiprime) - 1.at n=13A138104
- a(n) = (2^prime(n) - 1)*(2^prime(n) + 1) = 2^(2*prime(n)) - 1.at n=7A152099
- a(n) = 2*(4^n - 1) / A027760(n).at n=18A181904
- Numbers of the form 2^k - 1 for which each prime divisor has the form 4j + 3.at n=16A183075
- Composite numbers of the form 2^k - 1 for which each prime divisor has the form 4j + 3.at n=7A183076
- a(n) = 4*8^n - 1.at n=12A198852
- a(n) = 3*a(n-1) + 4*a(n-2) for n>1, a(0)=2, a(1)=3.at n=19A201455
- Decimal representation of the n-th iteration of the "Rule 85" elementary cellular automaton starting with a single ON (black) cell.at n=19A267036
- Decimal representation of the n-th iteration of the "Rule 173" elementary cellular automaton starting with a single ON (black) cell.at n=19A267596
- Permutation of natural numbers induced by looking up the position of fraction A270418(n)/A270419(n) from the full Stern-Brocot tree A007305(n+1)/A047679(n-1).at n=37A273672
- 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 5", based on the 5-celled von Neumann neighborhood.at n=37A277928
- 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 5", based on the 5-celled von Neumann neighborhood.at n=37A277929
- Decimal representation of the x-axis, from the left edge to the origin, or from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 7", based on the 5-celled von Neumann neighborhood.at n=37A277936
- 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 73", based on the 5-celled von Neumann neighborhood.at n=37A278759
- 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 73", based on the 5-celled von Neumann neighborhood.at n=37A278760