# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a126139 Showing 1-1 of 1 %I A126139 #3 Mar 30 2012 18:39:49 %S A126139 0,0,1,2,3,8,5,11,39 %N A126139 Number of non-rectangular polyominoes with n cells that tile a rectangle with congruent copies. %D A126139 S. W. Golomb, Polyominoes, second edition, Chapter 8, pp. 97-110, Princeton University Press, 1994. %H A126139 M. Reid, Rectifiable polyomino page. %F A126139 a(n) = A126138(n) - A038548(n). %Y A126139 Cf. A126138, A126140, A126141. %K A126139 hard,more,nonn %O A126139 1,4 %A A126139 _William Rex Marshall_, Dec 19 2006, Feb 15 2007 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE