Quadrisection of a Padovan sequence.

Terms

a(0) =1a(1) =1a(2) =4a(3) =12a(4) =37a(5) =114a(6) =351a(7) =1081a(8) =3329a(9) =10252a(10) =31572a(11) =97229a(12) =299426a(13) =922111a(14) =2839729a(15) =8745217a(16) =26931732a(17) =82938844a(18) =255418101a(19) =786584466a(20) =2422362079a(21) =7459895657a(22) =22973462017a(23) =70748973084a(24) =217878227876a(25) =670976837021