a(n) = floor(1/(zeta(5) - Sum_{h=1..n} 1/h^5)).

Terms

a(0) =27a(1) =176a(2) =639a(3) =1706a(4) =3759a(5) =7279a(6) =12842a(7) =21119a(8) =32879a(9) =48986a(10) =70399a(11) =98175a(12) =133466a(13) =177519a(14) =231679a(15) =297386a(16) =376175a(17) =469679a(18) =579626a(19) =707839a(20) =856239a(21) =1026842a(22) =1221759a(23) =1443199a(24) =1693466a(25) =1974959a(26) =2290175a(27) =2641706a(28) =3032239a(29) =3464559