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A321589 Number of tilings of a 6 X n rectangle using pentominoes of shapes X, Y, T and dominoes. 2
1, 1, 13, 83, 1103, 11453, 127320, 1388914, 15330926, 167842605, 1845273115, 20252779428, 222470481108, 2442643290488, 26825729083460, 294573090471640, 3234887436123961, 35523266398630041, 390097222479871444, 4283805079495347243, 47042252237178793997 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
Wikipedia, Pentomino
CROSSREFS
Cf. A286347.
Sequence in context: A163688 A274398 A301953 * A225129 A297207 A222491
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Nov 13 2018
STATUS
approved

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Last modified March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)