login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A220127 Number of tilings of a 10 X n rectangle using integer-sided rectangular tiles of area 10. 2
1, 1, 2, 3, 5, 9, 15, 26, 44, 75, 254, 470, 1130, 2150, 4369, 8889, 17112, 33235, 62619, 117687, 259213, 500978, 1073742, 2114851, 4334588, 8817832, 17673956, 35420952, 69871967, 137274169, 281650158, 556043329, 1139084899, 2264971273, 4589226181, 9256382600 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..100

EXAMPLE

a(4) = 5, because there are 5 tilings of a 10 X 4 rectangle using integer-sided rectangular tiles of area 10:

._._._._.   .___._._.   ._.___._.   ._._.___.   .___.___.

| | | | |   |   | | |   | |   | |   | | |   |   |   |   |

| | | | |   |   | | |   | |   | |   | | |   |   |   |   |

| | | | |   |   | | |   | |   | |   | | |   |   |   |   |

| | | | |   |   | | |   | |   | |   | | |   |   |   |   |

| | | | |   |___| | |   | |___| |   | | |___|   |___|___|

| | | | |   |   | | |   | |   | |   | | |   |   |   |   |

| | | | |   |   | | |   | |   | |   | | |   |   |   |   |

| | | | |   |   | | |   | |   | |   | | |   |   |   |   |

| | | | |   |   | | |   | |   | |   | | |   |   |   |   |

|_|_|_|_|   |___|_|_|   |_|___|_|   |_|_|___|   |___|___|

CROSSREFS

Column k=10 of A220122.

Sequence in context: A114140 A302018 A096816 * A286887 A018157 A228644

Adjacent sequences:  A220124 A220125 A220126 * A220128 A220129 A220130

KEYWORD

nonn,changed

AUTHOR

Alois P. Heinz, Dec 06 2012

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 16 08:18 EDT 2021. Contains 347469 sequences. (Running on oeis4.)