|
| |
|
|
A060722
|
|
a(n) = 3^(n^2).
|
|
7
|
| |
|
|
|
OFFSET
|
0,2
|
|
|
COMMENTS
|
The number of n X n {-1,0,1}-matrices (the same as the number of n X n matrices over GF(3) ).
|
|
|
LINKS
|
Harry J. Smith, Table of n, a(n) for n=0,...,45
|
|
|
MAPLE
|
for n from 1 to 15 do printf(`%d, `, 3^(n^2)) od:
with(finance):seq(mul(futurevalue( 3, 2, n), k=0..n), n=-1..10); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jul 01 2008
|
|
|
PROG
|
(PARI) { for (n=0, 45, write("b060722.txt", n, " ", 3^(n^2)); ) } [From Harry J. Smith, Jul 10 2009]
|
|
|
CROSSREFS
|
Sequence in context: A207311 A206693 A223570 * A183502 A134799 A055590
Adjacent sequences: A060719 A060720 A060721 * A060723 A060724 A060725
|
|
|
KEYWORD
|
nonn,easy
|
|
|
AUTHOR
|
Avi Peretz (njk(AT)netvision.net.il), Apr 21 2001
|
|
|
EXTENSIONS
|
More terms from James A. Sellers, Apr 24 2001
a(0) = 1 added by N. J. A. Sloane, Nov 23 2007
|
|
|
STATUS
|
approved
|
| |
|
|
