a(n) = Sum_{k=0..n} binomial(n,k^3).

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =10a(9) =19a(10) =56a(11) =177a(12) =508a(13) =1301a(14) =3018a(15) =6451a(16) =12887a(17) =24328a(18) =43777a(19) =75602a(20) =125991a(21) =203512a(22) =319793a(23) =490338a(24) =735496a(25) =1081601a(26) =1562302a(27) =2220104a(28) =3108162a(29) =4292581