A strong divisibility sequence associated with the algebraic integer 2 + i.

Terms

a(0) =1a(1) =2a(2) =1a(3) =8a(4) =1a(5) =2a(6) =1a(7) =48a(8) =1a(9) =2a(10) =1a(11) =104a(12) =1a(13) =2a(14) =1a(15) =1632a(16) =1a(17) =2a(18) =1a(19) =8a(20) =1a(21) =2a(22) =1a(23) =1872a(24) =1a(25) =2a(26) =109a(27) =232a(28) =1a(29) =1342