a(n) = a(n-1) + a(n-2) if n is even and a(n) = a(n-3) + a(n-4) if n is odd, with a(0) = a(1) = a(2) = 0 and a(3) = 1.
A265755
a(n) = a(n-1) + a(n-2) if n is even and a(n) = a(n-3) + a(n-4) if n is odd, with a(0) = a(1) = a(2) = 0 and a(3) = 1.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =0a(6) =1a(7) =2a(8) =3a(9) =1a(10) =4a(11) =5a(12) =9a(13) =5a(14) =14a(15) =14a(16) =28a(17) =19a(18) =47a(19) =42a(20) =89a(21) =66a(22) =155a(23) =131a(24) =286a(25) =221a(26) =507a(27) =417a(28) =924a(29) =728
External references
- oeis: A265755