Search: id:A101552
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%I A101552
%S A101552 0,0,0,0,0,0,1,4,10,20,35,56,84,120,166,228,322,484,785,1352,2396,4248,
%T A101552 7405,12592,20856,33728,53524,83912,130956,204968,323665,517356,837206,
%U A101552 1368108,2248479,3700648,6077900,9938488,16164330,26154700,42146078
%N A101552 C(n-3,3)+C(n-7,7)+...+C(n-(4*floor((n-4)/4)+3),4*floor((n-4)/4)+3).
%F A101552 G.f.: x^6/((1-x)^4-x^8); a(n)=sum{k=0..n, if(mod(k+1, 4)=0, C(n-k, k), 
               0)}.
%Y A101552 Cf. A024490, A101551.
%Y A101552 Sequence in context: A038409 A090579 A000292 this_sequence A038419 A057319 
               A034223
%Y A101552 Adjacent sequences: A101549 A101550 A101551 this_sequence A101553 A101554 
               A101555
%K A101552 easy,nonn
%O A101552 0,8
%A A101552 Paul Barry (pbarry(AT)wit.ie), Dec 06 2004

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