Search: id:A036606
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%I A036606
%S A036606 1,1,1,1,1,1,1,1,1,1,1,1,2,3,5,6,8,9,11,11,12,11,11,9,8,6,5,3,2,1,1,
%T A036606 1,1,1,2,4,8,14,26,44,76,125,206,327,521,802,1231,1845,2742,3987,
%U A036606 5748,8124,11364,15615,21212,28336,37412,48597,62368,78810,98359
%N A036606 Triangle of coefficients of generating function of 4-ary rooted trees 
               of height at most n.
%H A036606 E. M. Rains and N. J. A. Sloane, <a href="http://www.cs.uwaterloo.ca/
               journals/JIS/index.html">On Cayley's Enumeration of Alkanes (or 4-Valent 
               Trees).</a>, J. Integer Sequences, Vol. 2 (1999), Article 99.1.1.
%H A036606 <a href="Sindx_Ro.html#rooted">Index entries for sequences related to 
               rooted trees</a>
%e A036606 1; 1,1; 1,1,1,1,1,1; 1,1,1,2,3,5,6,8,9,11,11,12,11,11,9,8,6,5,3,2,1,1;
%Y A036606 Sequence in context: A098161 A026194 A102420 this_sequence A051837 A026371 
               A161188
%Y A036606 Adjacent sequences: A036603 A036604 A036605 this_sequence A036607 A036608 
               A036609
%K A036606 nonn,tabf,easy
%O A036606 0,13
%A A036606 N. J. A. Sloane (njas(AT)research.att.com).

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