Quadrisection of a generalized Padovan sequence.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =6a(5) =16a(6) =37a(7) =80a(8) =172a(9) =377a(10) =839a(11) =1874a(12) =4175a(13) =9274a(14) =20577a(15) =45665a(16) =101393a(17) =225193a(18) =500162a(19) =1110790a(20) =2466760a(21) =5477917a(22) =12164896a(23) =27015092a(24) =59993817a(25) =133231279a(26) =295872778a(27) =657057431a(28) =1459155634a(29) =3240410561