54332

Appears in sequences

• a(n) = 2*a(n-1) + a(n-3), with a(0)=1 and a(1)=2.at n=14A008998
• Pisot sequences E(4,9), P(4,9).at n=12A020708
• Integers written in base "triangle".at n=17A110301
• Duplicate of A008998.at n=15A141016
• If n <= 5 then a(n) = 1, if 6 <= n <= 8 then 2, if n = 9 or 10 then 3, if n = 11, 12 or 13 then n-7; otherwise a(n) = 2*a(n - 4) + a(n - 12).at n=58A239905
• Number of 3 X n 0..1 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..1 introduced in row major order.at n=12A240784
• Expansion of x^2/(1 - 4*x - 4*x^2 - x^3).at n=9A293710