a(n) = floor(L^3*{phi^(3*n-2), phi^(3*n-1), phi^(3*n-2) + phi^(3*n-1)}) where L = (1 + sqrt(5))/(2*sqrt(5)) and phi = (1 + sqrt(5))/2.
A115315
a(n) = floor(L^3*{phi^(3*n-2), phi^(3*n-1), phi^(3*n-2) + phi^(3*n-1)}) where L = (1 + sqrt(5))/(2*sqrt(5)) and phi = (1 + sqrt(5))/2.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =2a(4) =4a(5) =6a(6) =11a(7) =17a(8) =28a(9) =46a(10) =75a(11) =121a(12) =197a(13) =319a(14) =516a(15) =836a(16) =1353a(17) =2189a(18) =3542a(19) =5731a(20) =9273a(21) =15004a(22) =24278a(23) =39283a(24) =63562a(25) =102845a(26) =166408a(27) =269253a(28) =435661a(29) =704915
External references
- oeis: A115315