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A278877
Number of tilings of a 6 X n rectangle using pentominoes of any shape and monominoes.
5
1, 3, 155, 11914, 728857, 42238426, 2492016728, 147382229321, 8704392890599, 514207059584879, 30367424047335204, 1793195869965086337, 105893252956708204722, 6253339527216096201144, 369279138864066223011929, 21807048314051213226593407
OFFSET
0,2
LINKS
Wikipedia, Pentomino
EXAMPLE
a(1) = 3:
._. ._. ._.
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CROSSREFS
Column k=6 of A278657.
Sequence in context: A344898 A327058 A087306 * A203682 A316479 A139964
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Nov 29 2016
STATUS
approved