a(n) = 6*a(n-1)-8*a(n-2)-3 for n > 4; a(0)=633, a(1)=4809, a(2)=46041, a(3)=277767, a(4)=1079823.
A177684
a(n) = 6*a(n-1)-8*a(n-2)-3 for n > 4; a(0)=633, a(1)=4809, a(2)=46041, a(3)=277767, a(4)=1079823.
Terms
- a(0) =633a(1) =4809a(2) =46041a(3) =277767a(4) =1079823a(5) =4256799a(6) =16902207a(7) =67358847a(8) =268935423a(9) =1074741759a(10) =4296967167a(11) =17183868927a(12) =68727476223a(13) =274893905919
External references
- oeis: A177684