Number of 0..n arrays x(0..10) of 11 elements with zero 5th differences.

Terms

a(0) =2a(1) =3a(2) =4a(3) =5a(4) =6a(5) =7a(6) =8a(7) =9a(8) =10a(9) =15a(10) =24a(11) =39a(12) =54a(13) =69a(14) =92a(15) =117a(16) =142a(17) =171a(18) =208a(19) =267a(20) =338a(21) =447a(22) =560a(23) =687a(24) =844a(25) =1011a(26) =1198a(27) =1415a(28) =1648a(29) =1957