Search: id:A038208
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%I A038208
%S A038208 1,2,2,4,8,4,8,24,24,8,16,64,96,64,16,32,160,320,320,160,32,64,
%T A038208 384,960,1280,960,384,64,128,896,2688,4480,4480,2688,896,128,256,
%U A038208 2048,7168,14336,17920,14336,7168,2048,256,512,4608,18432,43008
%N A038208 Triangle whose (i,j)-th entry is binomial(i,j)*2^i.
%C A038208 Triangle obtained from expansion of (2+2x)^n.
%D A038208 B. N. Cyvin et al., Isomer enumeration of unbranched catacondensed polygonal 
               systems with pentagons and heptagons, Match, No. 34 (Oct 1996), pp. 
               109-121.
%Y A038208 Row sums : A000302 (powers of 4).
%Y A038208 Sequence in context: A045777 A136534 A121175 this_sequence A116694 A137778 
               A000017
%Y A038208 Adjacent sequences: A038205 A038206 A038207 this_sequence A038209 A038210 
               A038211
%K A038208 nonn,tabl,easy
%O A038208 0,2
%A A038208 N. J. A. Sloane (njas(AT)research.att.com).

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