a(n) = floor(1/{(10+n^4)^(1/4)}), where {}=fractional part.

Terms

a(0) =1a(1) =3a(2) =11a(3) =25a(4) =50a(5) =86a(6) =137a(7) =204a(8) =291a(9) =400a(10) =532a(11) =691a(12) =878a(13) =1097a(14) =1350a(15) =1638a(16) =1965a(17) =2332a(18) =2743a(19) =3200a(20) =3704a(21) =4259a(22) =4866a(23) =5529a(24) =6250a(25) =7030a(26) =7873a(27) =8780a(28) =9755a(29) =10800