Number of meaningful differential operations of the n-th order on the space R^5.

Terms

a(0) =5a(1) =9a(2) =16a(3) =29a(4) =52a(5) =94a(6) =169a(7) =305a(8) =549a(9) =990a(10) =1783a(11) =3214a(12) =5790a(13) =10435a(14) =18801a(15) =33881a(16) =61048a(17) =110009a(18) =198224a(19) =357194a(20) =643633a(21) =1159797a(22) =2089869a(23) =3765830a(24) =6785771a(25) =12227562a(26) =22033274a(27) =39702627a(28) =71541613a(29) =128913593