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A247771
Number of tilings of a 5 X n rectangle using n pentominoes of any but the T shape.
2
1, 1, 5, 50, 437, 3270, 21720, 160593, 1209537, 8999307, 66054288, 485082083, 3583263174, 26469863097, 195317239597, 1440271919247, 10624063817149, 78389991175482, 578363501074881, 4266856868607953, 31478045125433448, 232231064765922254, 1713315860292710073
OFFSET
0,3
LINKS
Wikipedia, Pentomino
CROSSREFS
Column k=0 of A247707.
Sequence in context: A060347 A133646 A043032 * A125962 A361555 A266028
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Sep 23 2014
STATUS
approved