Inverse of A164844.

Terms

a(0) =1a(1) =10a(2) =1a(3) =100a(4) =9a(5) =1a(6) =1000a(7) =91a(8) =8a(9) =1a(10) =10000a(11) =909a(12) =83a(13) =7a(14) =1a(15) =100000a(16) =9091a(17) =826a(18) =76a(19) =6a(20) =1a(21) =1000000a(22) =90909a(23) =8265a(24) =750a(25) =70a(26) =5a(27) =1a(28) =10000000a(29) =909091