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A213376
Number of polyominoes of order 2n that cannot be tiled by dominoes.
6
0, 1, 12, 158, 2428, 37776, 591729, 9260272, 144869916
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OFFSET
1,3
LINKS
Table of n, a(n) for n=1..9.
FORMULA
a(n) +
A056785
(n) =
A210996
(n). -
R. J. Mathar
, Jan 30 2023
CROSSREFS
Cf.
A056785
,
A056786
,
A213377
,
A213378
.
Sequence in context:
A003130
A015000
A220225
*
A269642
A269411
A347748
Adjacent sequences:
A213373
A213374
A213375
*
A213377
A213378
A213379
KEYWORD
hard
,
more
,
nonn
AUTHOR
Joseph Myers
, Jun 10 2012
STATUS
approved
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Last modified April 19 16:21 EDT 2024. Contains 371794 sequences. (Running on oeis4.)