%I A098173
%S A098173 1,0,1,0,0,1,0,0,0,1,0,0,0,1,1,0,0,0,0,5,1,0,0,0,0,0,15,1,0,0,0,0,0,0,
%T A098173 35,1,0,0,0,0,0,0,1,70,1,0,0,0,0,0,0,0,9,126,1,0,0,0,0,0,0,0,0,45,210,
               1,
%U A098173 0,0,0,0,0,0,0,0,0,165,330,1,0,0,0,0,0,0,0,0,0,1,495,495,1,0,0,0,0,0,0
%N A098173 Triangle T(n,k) with diagonals T(n,n-k)=Binomial(n,4k).
%C A098173 Row sums are A038503.
%F A098173 Triangle T(n, k)=Binomial(n, 4(n-k)).
%e A098173 Rows begin {1}, {0,1}, {0,0,1}, {0,0,0,1}, {0,0,0,1,1}, {0,0,0,0,5,1},
               ...
%Y A098173 Cf. A098158, A098172.
%Y A098173 Sequence in context: A027641 A164555 A129205 this_sequence A058177 A079508 
               A007912
%Y A098173 Adjacent sequences: A098170 A098171 A098172 this_sequence A098174 A098175 
               A098176
%K A098173 easy,nonn,tabl
%O A098173 0,20
%A A098173 Paul Barry (pbarry(AT)wit.ie), Aug 30 2004