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%I #5 Nov 20 2023 18:37:42
%S 1,1,12,21,43,57,81,52,62,83,4,34,74,15,55,5,56,6,66,27,87,58,29,9,99,
%T 81,71,81,91,1,11,21,31,41,51,61,71,81,91,1,11,21,31,41,51,61,72,82,2,
%U 22,42,62,82,2,22,42,62,82,2,22,42,62,82,2,22,42,62,82,3,23,53
%N First differences of A134647.
%Y Cf. A121805, A134647.
%K nonn,base
%O 1,3
%A _N. J. A. Sloane_, Nov 20 2023