Search: id:A091480
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%I A091480
%S A091480 1,0,1,0,1,1,0,1,3,1,0,1,9,6,1,0,1,27,36,10,1,0,1,81,216,100,15,1,0,1,
%T A091480 243,1296,1000,225,21,1,0,1,729,7776,10000,3375,441,28,1,0,1,2187,46656,
%U A091480 100000,50625,9261,784,36,1,0,1,6561,279936,1000000,759375
%N A091480 Table of multigraphs (by antidiagonals) with n (>=1) nodes and k (>=0) 
               edges. Each type of object labeled from its own label set.
%D A091480 F. Bergeron, G. Labelle and P. Leroux, Combinatorial Species and Tree-Like 
               Structures, Cambridge, 1998, pg 114 (2.4.44)
%F A091480 a(n, k) = binomial(n, 2)^k.
%e A091480 1 0 0 0 0 ...
%e A091480 1 1 1 1 1 ...
%e A091480 1 3 9 27 81 ...
%e A091480 1 6 36 216 1296 ...
%e A091480 1 10 100 1000 10000 ...
%Y A091480 Columns 0-8: A000012, A000217(n-1), A000537(n-1), A059827(n-1), A059977(n-1), 
               A059860(n-1), A059978(n-1), A059979(n-1), A059980(n-1).
%Y A091480 Rows 1-10: A000007, A000012, A000244, A000400, A011557, A001024, A009965, 
               A009972, A009980, A009989.
%Y A091480 Cf. A091478.
%Y A091480 Sequence in context: A048993 A112413 A122960 this_sequence A034374 A103879 
               A051722
%Y A091480 Adjacent sequences: A091477 A091478 A091479 this_sequence A091481 A091482 
               A091483
%K A091480 nonn,tabl
%O A091480 1,9
%A A091480 Christian G. Bower (bowerc(AT)usa.net), Jan 13 2004

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