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%I #21 Jan 14 2021 21:16:14
%S 10,45,150,756,1530,5100,7301,38646,42940,430263,391149
%N The number of n-digit numbers whose last k digits are divisible by k for k = 1..n.
%e There are ten one-digit numbers divisible by 1 so a(1)=10.
%e For two-digit numbers, the ones digit must be such that the two-digit number is divisible by 2 which gives 45 numbers, that is, all even numbers from 10 to 98 to satisfy the requirement. So a(2)=45.
%Y Cf. A164836.
%K nonn,base
%O 1,1
%A _Shyam Sunder Gupta_, Aug 07 2013
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