A032573 - OEIS

%I #8 Oct 25 2019 17:44:42

%S 1,2,3,4,5,6,7,8,9,11,22,33,44,55,66,77,88,99,121,242,363,484,1331,

%T 1837,2662,3146,3993,14641,16940,93753,139838,144096,154396,177870,

%U 196383,268950,292298,363484,1148136,1630222,1963830,3615999

%N Numbers k whose decimal representation, read as a base-21 value and divided by k, yields an integer.

%C Original name: Base 21 value of decimal denominator divided by this decimal value (n) is an integer.

%e 1837 is a term: 1837_21 = 12859 = 1837*7. - _Jon E. Schoenfield_, Oct 25 2019

%Y Cf. A032574. See also A032563 for explanation.

%K nonn,base

%O 1,2

%A _Patrick De Geest_, Apr 15 1998

%E Offset changed and Name edited by _Jon E. Schoenfield_, Oct 25 2019