Integer part of square root of A001017: a(n) = floor(n^(9/2)).

Terms

a(0) =0a(1) =1a(2) =22a(3) =140a(4) =512a(5) =1397a(6) =3174a(7) =6352a(8) =11585a(9) =19683a(10) =31622a(11) =48558a(12) =71831a(13) =102978a(14) =143739a(15) =196069a(16) =262144a(17) =344365a(18) =445375a(19) =568056a(20) =715541a(21) =891223a(22) =1098758a(23) =1342070a(24) =1625363a(25) =1953125a(26) =2330129a(27) =2761448a(28) =3252453a(29) =3808824