430441

Appears in sequences

• a(n) = 6*a(n-2) - a(n-4).at n=16A006452
• a(n) = 6*a(n-1) - a(n-2), n >= 2, a(0)=1, a(1)=2.at n=8A038725
• Solutions (value of r) of the Diophantine equation 2*x^2 + 3*x + 2 = r^2.at n=7A055979
• a(2n) = A001653(n) (Numbers n such that 2*n^2 - 1 is a square), a(2n+1) = A038725(n+1).at n=15A117719
• Dispersion of the Beatty sequence ([r*n]: n >= 1), where r = 3 + 8^(1/2): square array D(n,m) (n, m >= 1), read by ascending antidiagonals.at n=43A120858
• Expansion of x/(1-6*x+25*x^2).at n=9A188599
• Sequences A006452 and A216134 interlaced.at n=32A216162
• a(n) = sqrt(A299921(n)).at n=23A301318