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!)
A227588 Maximum label within a minimal labeling of k >= 0 identical n-sided dice (n >= 1) yielding the most possible sums; square array A(n,k), read by antidiagonals. 4

%I #18 Sep 13 2013 21:00:37

%S 1,1,1,1,2,1,1,3,2,1,1,4,4,2,1,1,5,7,5,2,1,1,6,12,12,6,2,1,1,7,18,24,

%T 16,7,2,1,1,8,26,46,42,23,8,2,1,1,9,35,83,101,73,29,9,2,1

%N Maximum label within a minimal labeling of k >= 0 identical n-sided dice (n >= 1) yielding the most possible sums; square array A(n,k), read by antidiagonals.

%H The <a href="http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/Challenges/July2013.html">IBM Ponder This July 2013</a> challenge asks for A(8,3).

%e Three tetrahedra labeled (1, 2, 8, 12) yield the 20 possible sums 3, 4, 5, 6, 10, 11, 12, 14, 15, 16, 17, 18, 21, 22, 24, 25, 26, 28, 32, 36. No more sums can be obtained by different labelings, and no labeling with labels < 12 yields 20 possible sums. Therefore A(4,3) = 12.

%e Square array A(n,k) begins:

%e 1, 1, 1, 1, 1, 1, 1, 1, ...

%e 1, 2, 2, 2, 2, 2, 2, ...

%e 1, 3, 4, 5, 6, 7, ...

%e 1, 4, 7, 12, 16, ...

%e 1, 5, 12, 24, ...

%e 1, 6, 18, ...

%e 1, 7, ...

%e 1, ...

%Y Cf. A227589, A227590, A227358.

%K nonn,tabl,more

%O 1,5

%A _Jens Voß_, Jul 17 2013

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 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)