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%I #13 Nov 24 2016 09:45:21
%S 1,2,3,4,6,7,8,10,12,13,14,15,16,19,23,25,27,28,34,35,36,37,44,48,50,
%T 53,55,60,62,63,66,67,68,69,83,87,91,93,95,100,103,106,108,110,111,
%U 113,115,120,123,126,127,130,131,132,133,134,156,165,176,181,185
%N Index when the partial tiling described in A275152 is perfect (i.e., all filled squares are contiguous).
%H Rémy Sigrist, <a href="/A275157/b275157.txt">Table of n, a(n) for n = 1..2500</a>
%e The following table depicts the first partial tilings described in A275152 ("X" denotes a filled square); perfect tilings are marked as such:
%e Index Perfect ? Partial tiling described in A275152
%e ----- --------- -----------------------------------
%e 1 * X
%e 2 * XX
%e 3 * XXXX
%e 4 * XXXXX
%e 5 XXXXXX X
%e 6 * XXXXXXXX
%e 7 * XXXXXXXXXX
%e 8 * XXXXXXXXXXXXX
%e 9 XXXXXXXXXXXXXX X
%e 10 * XXXXXXXXXXXXXXXXXX
%e 11 XXXXXXXXXXXXXXXXXXX X
%e 12 * XXXXXXXXXXXXXXXXXXXXXXX
%e 13 * XXXXXXXXXXXXXXXXXXXXXXXXX
%e 14 * XXXXXXXXXXXXXXXXXXXXXXXXXXXX
%e 15 * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
%e 16 * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
%e 17 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X
%e 18 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX
%e 19 * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
%e 20 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X
%e 21 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X
%e 22 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XX
%e 23 * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
%e 24 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X
%e 25 * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
%Y Cf. A275152.
%K nonn
%O 1,2
%A _Rémy Sigrist_, Nov 13 2016
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