467280

Appears in sequences

• a(n) = 3*a(n-1) + a(n-2), with a(0)=0, a(1)=1.at n=12A006190
• Pisot sequences E(3,10), P(3,10).at n=10A020704
• Numbers k such that 13*k^2 + 4 is a square.at n=6A075835
• a(n) = 2*a(n-2)+4*a(n-4)+a(n-6), n>11.at n=27A107855
• Fixed-k dispersion for Q = 13: array D(g,h) (g, h >= 1), read by ascending antidiagonals.at n=33A120863
• List of quadruples (r,s,t,u): the matrix M = [[4,12,9][2,5,3][1,2,1]] is raised to successive powers, then (r,s,t,u) are the square roots of M[3,1], M[3,3], M[1,1], M[1,3] respectively.at n=48A249579
• Denominators of the continued fraction convergents to sqrt(13)/2 = A295330.at n=11A295332
• a(n) = 3*a(n-2) + a(n-4), a(0)=a(1)=0, a(2)=1, a(3)=2.at n=24A305889