|
Search: id:A129923
|
|
| |
|
| 24, 144, 1008, 8064, 72576, 725760, 7983360, 95800320, 1245404160, 17435658240, 261534873600, 4184557977600, 71137485619200, 1280474741145600, 24329020081766400, 486580401635328000, 10218188434341888000
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
Alternating groups are: An->n!/2 for n>=2 If the tritonic or triplet symmetric groups are: Tn->n!/3 for n>=4 Then the pentatonic would be: Pn->n!/5 for n>=5 General: ( triangular sequence) G(m)n=n!/Prime[m] for n>=Prime[m]
|
|
FORMULA
|
a(n)=n!/5
|
|
MATHEMATICA
|
Table[n!/5, {n, 5, 5 + 25}]
|
|
CROSSREFS
|
Cf. A002301.
Sequence in context: A054118 A001342 A029572 this_sequence A064138 A042116 A042118
Adjacent sequences: A129920 A129921 A129922 this_sequence A129924 A129925 A129926
|
|
KEYWORD
|
nonn,uned
|
|
AUTHOR
|
Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jun 06 2007
|
|
|
Search completed in 0.002 seconds
|
