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%I #3 Sep 21 2011 22:02:24
%S 1,2,6,16,50,144,462,1392,4356,14060,46310,146376
%N Erroneous version of A000136.
%C Included in accordance with OEIS policy of including published but erroneous sequences, to serve as pointers to the correct versions.
%D W. F. Lunnon, A map-folding problem, Math. Comp. 22 (1968), 193-199.
%K dead
%O 1,2
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