%I A134970
%S A134970 101,202,212,303,313,323,404,414,424,434,505,515,525,535,545,606,616,626,
%T A134970 636,646,656,707,717,727,737,747,757,767,808,818,828,838,848,858,868,
%U A134970 878,909,919,929,939,949,959,969,979,989,2012,2102,3013,3023
%N A134970 Canyon numbers.
%C A134970 The structure of digits represent a canyon (a deep valley between cliffts). 
               The first digit is equal to last digit. The first digits are in decreasing 
               order. The last ligits are in increasing order. The numbers only 
               have a smaller digit that represent the botton of the canyon. This 
               sequence is finite. The last member is 9876543210123456789.
%e A134970 4104 is a canyon number:
%e A134970 4 . . 4
%e A134970 . . . .
%e A134970 . . . .
%e A134970 . 1 . .
%e A134970 . . 0 .
%Y A134970 Sequence in context: A044714 A158128 A162670 this_sequence A081365 A138131 
               A069858
%Y A134970 Adjacent sequences: A134967 A134968 A134969 this_sequence A134971 A134972 
               A134973
%K A134970 fini,nonn,base
%O A134970 1,1
%A A134970 Omar E. Pol (info(AT)polprimos.com), Nov 25 2007, Nov 26 2007