Somos-5 sequence: a(n) = (a(n-1) * a(n-4) + a(n-2) * a(n-3)) / a(n-5), with a(0) = a(1) = a(2) = a(3) = a(4) = 1.
A006721
Somos-5 sequence: a(n) = (a(n-1) * a(n-4) + a(n-2) * a(n-3)) / a(n-5), with a(0) = a(1) = a(2) = a(3) = a(4) = 1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =3a(7) =5a(8) =11a(9) =37a(10) =83a(11) =274a(12) =1217a(13) =6161a(14) =22833a(15) =165713a(16) =1249441a(17) =9434290a(18) =68570323a(19) =1013908933a(20) =11548470571a(21) =142844426789
External references
- oeis: A006721