login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A274598 Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+4) rectangle. 6

%I #26 Aug 12 2019 02:45:02

%S 1,5,14,40,103,247,567,1252,2668,5539,11214,22247,43300,82871,156152,

%T 290202,532430,965395,1731351,3073660,5404984,9420512,16282463,

%U 27922063,47527430,80331385,134873275,225015223,373141724,615224276,1008792896,1645443771,2670372299,4312780664,6933014899

%N Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+4) rectangle.

%C This problem was stated in this fashion by R. Kenyon and Ben Young in the Domino Forum (domino@listserv.uml.edu).

%H Suresh Govindarajan, <a href="/A274598/b274598.txt">Table of n, a(n) for n = 0..45</a>

%H Domino Forum, <a href="https://listserv.uml.edu/cgi-bin/wa.exe?A0=DOMINO">Domino Home Page</a>

%H S. Govindarajan, A. J. Guttmann and V. Subramanyan, <a href="https://arxiv.org/abs/1607.01890">On a square-ice analogue of plane partitions</a>, arXiv:1607.01890 [cond-mat.stat-mech], 2016.

%Y Cf. A274582, A274594, A274596, A274597, A274599.

%K nonn,hard

%O 0,2

%A _Suresh Govindarajan_, Jun 30 2016

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)