8957108166

Appears in sequences

• Companion Pell numbers: a(n) = 2*a(n-1) + a(n-2), a(0) = a(1) = 2.at n=26A002203
• a(n) = 6*a(n-1) - a(n-2), with a(0) = 2, a(1) = 6.at n=13A003499
• Numerators of continued fraction convergents to sqrt(32).at n=25A041052
• Expansion of (1+x^2)/(1-2*x-x^2).at n=26A099425
• Expansion of (1+6*x+x^2-2*x^3)/((x^2+2*x-1)*(x^2-2*x-1)), bisection is NSW numbers.at n=25A159582
• a(1)=4, a(2)=6; for n > 2, a(n) = 2*a(n-1) + a(n-2) - 4*((n-1) mod 2).at n=25A162485
• G.f.: Product_{n>=1} (1 - A002203(n)*x^n + (-1)^n*x^(2*n)) where A002203(n) is the companion Pell numbers.at n=26A204382
• Numbers such that floor(a(n)^2 / 8) is again a square.at n=28A204514