Nexus numbers (n+1)^9-n^9.

Terms

a(0) =1a(1) =511a(2) =19171a(3) =242461a(4) =1690981a(5) =8124571a(6) =30275911a(7) =93864121a(8) =253202761a(9) =612579511a(10) =1357947691a(11) =2801832661a(12) =5444719021a(13) =10056547411a(14) =17782312591a(15) =30276117361a(16) =49868399761a(17) =79771413871a(18) =124328407411a(19) =189312302221a(20) =282280046581a(21) =412989171211a(22) =593883443671