cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-4 of 4 results.

A100540 Total number of Latin 4-dimensional hypercubes (Latin polyhedra) of order n.

Original entry on oeis.org

1, 2, 48, 36972288, 52260618977280
Offset: 1

Views

Author

Toru Ito (t_ito(AT)mue.biglobe.ne.jp), Nov 28 2004

Keywords

References

  • T. Ito, Method, equipment,program and storage media for producing tables, Publication number JP2004-272104A, Japan Patent Office (in Japanese).

Crossrefs

A row of the array in A249026.

Extensions

a(5) from Ian Wanless, May 01 2008
Edited by N. J. A. Sloane, Dec 05 2009 at the suggestion of Vladeta Jovovic

A132206 Total number of Latin 5-dimensional hypercubes (Latin polyhedra) of order n.

Original entry on oeis.org

1, 2, 96, 6268637952000, 2010196727432478720
Offset: 1

Views

Author

Toru Ito (to-itou(AT)ipa.go.jp), Nov 06 2007

Keywords

Comments

L5(1) = 1, L5(2) = 1, L5(3) = 1, L5(4) = 201538000 L5(1)~l5(4) are Number of reduced Latin 5-dimensional hypercubes (Latin polyhedra) of order n. Latin 5-dimensional hypercubes (Latin polyhedra) are a generalization of Latin cube and Latin square. a(4) and L5(4) computed on Dec 01 2002.

Examples

			4*(4-1)!^5*L5(4) = 6268637952000 where L5(4) = 201538000
		

References

  • T. Ito, Method, equipment, program and storage media for producing tables, Publication number JP2004-272104A, Japan Patent Office (written in Japanese).
  • B. D. McKay and I. M. Wanless, A census of small latin hypercubes, SIAM J. Discrete Math. 22, (2008) 719-736.
  • Kenji Ohkuma, Atsuhiro Yamagishi and Toru Ito, Cryptography Research Group Technical report, IT Security Center, Information-Technology Promotion Agency, JAPAN.

Crossrefs

A row of the array in A249026.

Formula

Equals n*(n-1)!^5*L5(n), where L5(n) is number of reduced Latin 5-dimensional hypercubes (Latin polyhedra) of order n (cf. A132205).

Extensions

a(5) from Ian Wanless, May 01 2008
Edited by N. J. A. Sloane, Dec 05 2009 at the suggestion of Vladeta Jovovic

A100539 Number of reduced Latin 4-dimensional hypercubes (Latin polyhedra) of order n.

Original entry on oeis.org

1, 1, 1, 7132, 31503556
Offset: 1

Views

Author

Toru Ito (t_ito(AT)mue.biglobe.ne.jp), Nov 28 2004

Keywords

Comments

Latin 4-dimensional hypercubes (Latin polyhedra) are a generalization of Latin cube and Latin square.

References

  • T. Ito, Method, equipment, program and storage media for producing tables, Publication number JP2004-272104A, Japan Patent Office (written in Japanese).

Crossrefs

Extensions

a(5) from Ian Wanless, May 01 2008
Edited by N. J. A. Sloane, Dec 06 2009 at the suggestion of Vladeta Jovovic

A211214 Number of reduced Latin n-dimensional hypercubes of order 4; labeled n-ary loops of order 4 with fixed identity.

Original entry on oeis.org

1, 1, 4, 64, 7132, 201538000, 432345572694417712, 3987683987354747642922773353963277968, 678469272874899582559986240285280710364867063489779510427038722229750276832
Offset: 0

Views

Author

Denis S. Krotov and Vladimir N. Potapov, Apr 06 2012

Keywords

Comments

The values are calculated recursively, based on the characterization by 2009. The number a(5) was found before (2001 and, independently, later works) by exhaustive computer-aided classification of the objects.

Crossrefs

Formula

a(n) = A211215(n)/(4*6^n).
Showing 1-4 of 4 results.