Number of 0..n arrays x(0..9) of 10 elements with zero 4th differences.

Terms

a(0) =2a(1) =3a(2) =4a(3) =5a(4) =6a(5) =7a(6) =8a(7) =9a(8) =12a(9) =21a(10) =30a(11) =39a(12) =52a(13) =65a(14) =84a(15) =107a(16) =130a(17) =155a(18) =184a(19) =221a(20) =266a(21) =323a(22) =384a(23) =447a(24) =520a(25) =605a(26) =696a(27) =803a(28) =914a(29) =1055