Integer part of square root of n^5 = A000584(n).

Terms

a(0) =1a(1) =5a(2) =15a(3) =32a(4) =55a(5) =88a(6) =129a(7) =181a(8) =243a(9) =316a(10) =401a(11) =498a(12) =609a(13) =733a(14) =871a(15) =1024a(16) =1191a(17) =1374a(18) =1573a(19) =1788a(20) =2020a(21) =2270a(22) =2536a(23) =2821a(24) =3125a(25) =3446a(26) =3787a(27) =4148a(28) =4528a(29) =4929