|
| |
| |
|
|
|
0, 24, 192, 1248, 7680, 46464, 279552, 1678848, 10076160, 60463104, 362790912, 2176770048, 13060669440, 78364114944, 470184886272, 2821109710848, 16926659051520, 101559955881984, 609359738437632, 3656158436917248
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
COMMENTS
| Number of orthogonal arrays OA(4,n,2,1).
|
|
|
REFERENCES
| J.-Z. Zhang, Z.-S. You and Z.-L. Li, Enumeration of binary orthogonal arrays of strength 1, Discrete Math., 239 (2000), 191-198.
|
|
|
LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,150
|
|
|
PROG
| (PARI) { for (n=1, 150, write("b066406.txt", n, " ", 2^n*(3^n - 3)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Feb 13 2010]
|
|
|
CROSSREFS
| Sequence in context: A143040 A128960 A047057 * A042114 A123197 A125361
Adjacent sequences: A066403 A066404 A066405 * A066407 A066408 A066409
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Dec 25 2001
|
| |
|
|
