29244646

Appears in sequences

• a(n) = 2*a(n-1) + a(n-2); a(0)=1, a(1)=4.at n=19A048654
• Bisection of A048654.at n=9A100525
• a(2n) = A100525(n), a(2n+1) = A001653(n+1); a Pellian-related sequence.at n=18A129346
• Integers k such that 2*k^2 - 7 is a square.at n=19A217975
• a(n) = 2*a(n - 2) + a(n - 4) with a(0) = a(1) = 2, a(2) = 1, a(3) = 3.at n=40A266504