94875313

Appears in sequences

• Numbers k such that k^2 is centered hexagonal.at n=7A001570
• Denominators of continued fraction convergents to sqrt(12).at n=14A041017
• Denominators of continued fraction convergents to sqrt(48).at n=14A041083
• Binomial transform of sinh(x)*cosh(sqrt(3)*x).at n=15A084156
• a(2n) = A001570(n), a(2n+1) = -A007654(n+1).at n=14A108946
• a(2*n) = A001570(n), a(2*n+1) = A011943(n+1).at n=14A110293
• Triangle T(n, k) = 2*(-1 + 2*k)*T(n-1, k) - T(n-2, k) with T(-2, k) = T(-1, k) = 1, read by rows.at n=25A122053
• a(n) = 14*a(n-1) - a(n-2), with a(1) = a(2) = 1.at n=8A122571
• Numerators of continued fraction convergents to sqrt(3)/2.at n=15A144535
• Numerators of fractions x^n + y^n, where x + y = 1 and x^2 + y^2 = 2.at n=29A173299
• Array of a(n)=a(n-1)*k-((k-1)/(k^n)) where a(0)=1 and k=(sqrt(x^2-1)+x)^2 for integers x>=1.at n=37A188646