Number of meaningful differential operations of the n-th order on the space R^10.

Terms

a(0) =10a(1) =18a(2) =32a(3) =58a(4) =104a(5) =188a(6) =338a(7) =610a(8) =1098a(9) =1980a(10) =3566a(11) =6428a(12) =11580a(13) =20870a(14) =37602a(15) =67762a(16) =122096a(17) =220018a(18) =396448a(19) =714388a(20) =1287266a(21) =2319594a(22) =4179738a(23) =7531660a(24) =13571542a(25) =24455124a(26) =44066548a(27) =79405254a(28) =143083226a(29) =257827186