%I A048135
%S A048135 3,4,5,6,7,8,9,10,12,13,14,15,16,17,18,19,20,21,24,26,27,28,30,32,
%T A048135 34,35,36,37,38,39,40,42,45,48,51,52,54,56,57,60,63,64,65,68,70,72,
%U A048135 73,74,76,78,80,81,84,85,90,91,95,96,97,102,104,105,108,109,111,112
%N A048135 Tomahawk-constructible n-gons.
%D A048135 Andrew M. Gleason, Angle Trisection, the Heptagon and the Triskaidecagon. 
               American Mathematical Monthly 95 (1988) 185 - 194.
%F A048135 a(n) = A122254(n+2); A122255(a(n)) = 1. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), 
               Aug 29 2006
%Y A048135 Cf. A005109, A048136.
%Y A048135 Sequence in context: A072809 A114904 A039220 this_sequence A026500 A091213 
               A039238
%Y A048135 Adjacent sequences: A048132 A048133 A048134 this_sequence A048136 A048137 
               A048138
%K A048135 nonn
%O A048135 1,1
%A A048135 David W. Wilson (davidwwilson(AT)comcast.net)