-80782

Appears in sequences

• Expansion of 1/(1 + 2*x - x^2).at n=13A077985
• Expansion of 2+(1-2*x)/(-1+2*x+x^2).at n=15A176981
• a(n) = -2*a(n-1) + a(n-2) for n > 2, with a(0) = a(1) = 1, a(2) = 0.at n=16A215936
• List of triples (r,s,t): the matrix M = [[1,4,4][1,3,2][1,2,1]] is raised to successive negative powers, then (r,s,t) are the square roots of M[3,1], M[1,1], M[1,3] respectively.at n=41A249577
• a(n+8)+34*a(n+4)+a(n)=0 with a(0)-a(7) as shown.at n=12A259861
• a(n+8)+34*a(n+4)+a(n)=0 with a(0)-a(7) as shown.at n=13A259861