a(n) = n^5 - n - 1.

Terms

a(0) =-1a(1) =29a(2) =239a(3) =1019a(4) =3119a(5) =7769a(6) =16799a(7) =32759a(8) =59039a(9) =99989a(10) =161039a(11) =248819a(12) =371279a(13) =537809a(14) =759359a(15) =1048559a(16) =1419839a(17) =1889549a(18) =2476079a(19) =3199979a(20) =4084079a(21) =5153609a(22) =6436319a(23) =7962599a(24) =9765599a(25) =11881349a(26) =14348879a(27) =17210339a(28) =20511119a(29) =24299969