7th powers written backwards.

Terms

a(0) =0a(1) =1a(2) =821a(3) =7812a(4) =48361a(5) =52187a(6) =639972a(7) =345328a(8) =2517902a(9) =9692874a(10) =1a(11) =17178491a(12) =80813853a(13) =71584726a(14) =405314501a(15) =573958071a(16) =654534862a(17) =376833014a(18) =230022216a(19) =937178398a(20) =821a(21) =1458801081a(22) =8887534942a(23) =7445284043a(24) =4241746854a(25) =5265153016a(26) =6710181308a(27) =30235306401