| a(n) = 98*a(n-1) - a(n-2) - 16; g.f.: (1-18*x+x^2)/((1-x)*(1-98*x+x^2)) - Warut Roonguthai (warut822(AT)yahoo.com) Jan 05 2001
a(n+1)=49*a(n)-8+10*sqrt(8*(3a(n)^2-a(n)) with a(1)=1 [From Richard Choulet (richardchoulet(AT)yahoo.fr), Apr 28 2009]
a(n)=1/6+((5+2*sqrt(6))^(2*n+1)/12)+((5-2*sqrt(6))^(2*n+1)/12) for n>=0 [From Richard Choulet (richardchoulet(AT)yahoo.fr), Apr 29 2009]
Contribution from Weisenhorn Paul (paulweisenhorn(AT)online.de), May 15 2009: (Start)
x(n+2)=98*x(n+1)-x(n) with x(1)=5,x(2)=485
y(n+2)=98*y(n+1)-y(n) with y(n)=A046173(n)*2
m(n+2)=98*m(n+1)-m(n) with m(n)=A046173(n)
a(n)=A072256(n)^2
(End)
a(n)=b(n)*b(n) b(n)=10*b(n-1)- b(n-2) b(1)=1 b(2)=9 b(n)=((5+sqrt(24))^n-(5-sqrt(24))^n)/(2*sqrt(24)) [From Sture Sjostedt (sture.sjostedt(AT)spray.se), Sep 21 2009]
From Ant King, Nov 07 2011: (Start)
a(n) = 99*a(n-1) - 99*a(n-2) + a(n-3).
a(n) = ceiling(1/12*(sqrt(3) + sqrt(2))^(4*n-2)).
(End)
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