First differences of Padovan sequence A000931.

Terms

a(0) =-1a(1) =0a(2) =1a(3) =-1a(4) =1a(5) =0a(6) =0a(7) =1a(8) =0a(9) =1a(10) =1a(11) =1a(12) =2a(13) =2a(14) =3a(15) =4a(16) =5a(17) =7a(18) =9a(19) =12a(20) =16a(21) =21a(22) =28a(23) =37a(24) =49a(25) =65a(26) =86a(27) =114a(28) =151a(29) =200