261633

Appears in sequences

• Cyclotomic polynomials at x=8.at n=18A019326
• Cyclotomic polynomials at x=-2.at n=27A020501
• Cyclotomic polynomials at x=-8.at n=9A020507
• a(n) = 4^n - 2^n + 1.at n=9A020515
• a(n) = n^6 - n^3 + 1.at n=8A060891
• Numbers of the form 2^k+1 or 4^k-2^k+1.at n=26A064386
• a(n) = (lcm_{k=0..n} (2^k + 1))/(lcm_{k=0..n-1} (2^k + 1)).at n=26A066845
• Integers of the form (2^(n^3)+1)/(2^(n^2)+1).at n=1A066914
• Triangular array read by rows: row s contains integers of the form (2^s+1)/(2^r+1) in order of increasing r <= s-1.at n=30A079665
• Sylvester-Jacobsthal cyclotomic numbers.at n=26A105603
• Legendre-binomial transform of 2^n for p=3.at n=18A117976
• Numbers k such that k^3 divides 8^(k^2) + 1.at n=11A128681
• Numbers representable as Phi(k,2), the k-th cyclotomic polynomial evaluated at 2, for some k>0.at n=32A153601
• a(n) = 1 - 2^k + 4^k where k = 3^n.at n=2A198915
• 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 406", based on the 5-celled von Neumann neighborhood.at n=17A281892
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 133", based on the 5-celled von Neumann neighborhood.at n=17A286020
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 579", based on the 5-celled von Neumann neighborhood.at n=17A289467
• Numbers k such that k^2 + 1 divides 2^k + 8.at n=14A319245
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/4)} binomial(n-1,4*k) * a(k).at n=21A352066
• Integers of the form (2^x + 1) / (2^y + 1).at n=23A370425