Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A059860
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A059860 Binomial(n+2,2)^5. +0
7
1, 243, 7776, 100000, 759375, 4084101, 17210368, 60466176, 184528125, 503284375, 1252332576, 2887174368, 6240321451, 12762815625, 24883200000, 46525874176, 83841135993, 146211169851, 247609900000, 408410100000 (list; graph; listen)
OFFSET

1,2

COMMENT

Number of 5-dimensional cage assemblies.

See Chap. 61, "Hyperspace Prisons", of C. Pickover's book "Wonders of Numbers" for full explanation of "cage numbers."

REFERENCES

C. Pickover, Wonders of Numbers, Oxford University Press, 2001, p. 325.

LINKS

C. A. Pickover, "Wonders of Numbers, Adventures in Mathematics, Mind and Meaning," Zentralblatt review

FORMULA

L(n) = ((n^m)(n + 1)^m)/(2^m) where m is the dimension.

MAPLE

for n from 1 to 100 do printf(`%d, `, ((n^5)*(n + 1)^5)/(2^5) ) od:

with (combinat):seq(mul(stirling2(n+1, n), k=1..5), n=1..21); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Dec 14 2007

MATHEMATICA

m = 5; Table[ ( (n^m)(n + 1)^m )/(2^m), {n, 1, 26} ]

CROSSREFS

Cf. A059827.

Sequence in context: A133550 A029700 A016769 this_sequence A016841 A128833 A016889

Adjacent sequences: A059857 A059858 A059859 this_sequence A059861 A059862 A059863

KEYWORD

easy,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Feb 28 2001

EXTENSIONS

More terms from James A. Sellers (sellersj(AT)math.psu.edu), Feb 28 2001

Better definition from Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 23 2006

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


AT&T Labs Research