2549185

Appears in sequences

• Generalized Pellian with second term equal to 5.at n=16A048655
• Expansion of (1+5*x)/(1-6*x+x^2).at n=8A054490
• Numbers k such that 2*k^2 + 14 is a square.at n=16A077446
• Shifted Pell recurrence: a(n) = 2*a(n-2) + a(n-4).at n=32A135246
• a(n) = 2*a(n - 2) + a(n - 4) with a(0) = -1, a(1) = 1, a(2) = 3, a(3) = 5.at n=33A266505