Search: id:A138151
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%I A138151
%S A138151 1,2,1,3,1,1,4,2,2,1,1,1,5,3,2,1,1,1,1,1,6,4,2,3,3,2,2,2,1,1,1,1,1,1,1,
%T A138151 7,5,2,4,3,3,2,2,1,1,1,1,1,1,1,1,1,1,1,8,6,2,5,3,4,4,4,2,2,3,3,2,2,2,2,
%U A138151 2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,9,7,2,6,3,5,4,5,2,2,4,3,2,3,3,3,3,2,2
%N A138151 A shell model of partitions. Triangle read by rows: row n lists the parts 
               of the outer shell of the partitions of n.
%C A138151 Row n lists the terms of row n of A138138, in decreasing order. See the 
               integrated diagram of partitions and more information in the entry 
               A138138.
%e A138151 Triangle begins:
%e A138151 1
%e A138151 2,1
%e A138151 3,1,1
%e A138151 4,2,2,1,1,1
%e A138151 5,3,2,1,1,1,1,1,
%e A138151 6,4,2,3,3,2,2,2,1,1,1,1,1,1,1
%e A138151 7,5,2,4,3,3,2,2,1,1,1,1,1,1,1,1,1,1,1
%e A138151 8,6,2,5,3,4,4,4,2,2,3,3,2,2,2,2,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
%e A138151 9,7,2,6,3,5,4,5,2,2,4,3,2,3,3,3,3,2,2,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
               1,1,1,1,1,1,1
%Y A138151 Cf. A135010, A138121, A138122, A138123, A138136, A138137, A138138, A138152, 
               A138153.
%Y A138151 Sequence in context: A089178 A116599 A138121 this_sequence A166556 A143318 
               A122610
%Y A138151 Adjacent sequences: A138148 A138149 A138150 this_sequence A138152 A138153 
               A138154
%K A138151 nonn
%O A138151 1,2
%A A138151 Omar E. Pol (info(AT)polprimos.com), Mar 21 2008

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