The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A220772 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A220772

Number of tilings of a 6 X n rectangle using integer-sided rectangular tiles of equal area.
(history; published version)

#12 by Alois P. Heinz at Sun Sep 05 19:14:26 EDT 2021

STATUS

proposed

approved

#11 by Jon E. Schoenfield at Sun Sep 05 18:30:02 EDT 2021

STATUS

editing

proposed

#10 by Jon E. Schoenfield at Sun Sep 05 18:30:00 EDT 2021

NAME

Number of tilings of a 6 X n rectangle using integer -sided rectangular tiles of equal area.

STATUS

approved

editing

#9 by Alois P. Heinz at Fri Dec 21 18:52:17 EST 2012

STATUS

editing

approved

#8 by Alois P. Heinz at Fri Dec 21 18:52:13 EST 2012

COMMENTS

a(n+1)/a(n) tends to r = 5.048917339522305313522214407..., where r is the largest root of the equation 1-5*x+6*x^2-x^3=0. - Vaclav Kotesovec, Dec 21 2012

STATUS

proposed

editing

#7 by Vaclav Kotesovec at Fri Dec 21 06:41:29 EST 2012

STATUS

editing

proposed

#6 by Vaclav Kotesovec at Fri Dec 21 06:40:26 EST 2012

COMMENTS

a(n+1)/a(n) tends to r = 5.048917339522305313522214407..., where r is the root of the equation 1-5*x+6*x^2-x^3=0. - Vaclav Kotesovec, Dec 21 2012

STATUS

approved

editing

#5 by Alois P. Heinz at Thu Dec 20 16:07:20 EST 2012

STATUS

editing

approved

#4 by Alois P. Heinz at Wed Dec 19 18:14:30 EST 2012

EXAMPLE

a(1) = 4:

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#3 by Alois P. Heinz at Wed Dec 19 18:11:38 EST 2012

LINKS

Alois P. Heinz, <a href="/A220772/b220772.txt">Table of n, a(n) for n = 0..500</a>