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A061425 Sum of digits = 8 times number of digits.

%I A061425 #9 Dec 07 2020 01:28:43
%S A061425 8,79,88,97,699,789,798,879,888,897,969,978,987,996,5999,6899,6989,
%T A061425 6998,7799,7889,7898,7979,7988,7997,8699,8789,8798,8879,8888,8897,
%U A061425 8969,8978,8987,8996,9599,9689,9698,9779,9788,9797,9869,9878,9887,9896,9959
%N A061425 Sum of digits = 8 times number of digits.
%H A061425 Robert Israel, <a href="/A061425/b061425.txt">Table of n, a(n) for n = 1..10000</a>
%e A061425 879 is a term as the arithmetic mean of the digits is (8+7+9)/3 = 8.
%p A061425 Q:= proc(n,t) option remember; local j,R;
%p A061425       if t > 9*n or t <= 0 then return [] fi;
%p A061425       R:= NULL;
%p A061425       for j from 0 to min(t,9) do
%p A061425         R:= R, op(map(s -> 10*s+j, procname(n-1,t-j)))
%p A061425       od;
%p A061425       [R]
%p A061425 end proc;
%p A061425 for i from 0 to 9 do Q(1,i):= [i] od:
%p A061425 seq(op(sort(Q(d,8*d))),d=1..4); # _Robert Israel_, Dec 07 2020
%Y A061425 Cf. A061383-A061388, A061423-A061424.
%K A061425 nonn,base,easy
%O A061425 1,1
%A A061425 _Amarnath Murthy_, May 03 2001
%E A061425 More terms from Larry Reeves (larryr(AT)acm.org), May 16 2001