%I #4 May 08 2015 16:55:11
%S 1,2,2,2,2,2,2,2,2,2,10,10,7,6,4,4,4,4,3,2,5,7,5,4,3,3,3,3,2,2,4,5,4,
%T 4,2,3,3,2,2,2,3,4,4,3,3,3,2,1,2,1,2,3,2,3,3,2,2,2,2,1,2,2,3,3,2,1,2,
%U 2,1,2,2,3,3,2,2,2,1,2,1,1,2,3,2,2,2,1
%N Number of numbers k, 0 <= k <= 9, such that n is a Belgian-k number.
%C See A106039 for definition of Belgian-k numbers.
%C row lengths in A257770;
%C a(A257785(n)) = 1;
%C For n > 1: a(A007088(n)) = 10.
%H Reinhard Zumkeller, <a href="/A257773/b257773.txt">Table of n, a(n) for n = 0..10000</a>
%o (Haskell)
%o a257773 = length . a257770_row
%Y Cf. A106039, A257770, A257785, A007088.
%K nonn
%O 0,2
%A _Reinhard Zumkeller_, May 08 2015