a(n) = A006720(n)^2 (squared terms of Somos-4 sequence).
A028945
a(n) = A006720(n)^2 (squared terms of Somos-4 sequence).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =9a(6) =49a(7) =529a(8) =3481a(9) =98596a(10) =2337841a(11) =67387681a(12) =6941055969a(13) =384768368209
External references
- oeis: A028945