Multiply previous term by 7 and reverse.

Terms

a(0) =1a(1) =7a(2) =94a(3) =856a(4) =2995a(5) =56902a(6) =413893a(7) =1527982a(8) =47859601a(9) =702710533a(10) =1373798194a(11) =8537856169a(12) =38139946795a(13) =565726979662