|
|
|
|
1, 80, 6400, 512000, 40960000, 3276800000, 262144000000, 20971520000000, 1677721600000000, 134217728000000000, 10737418240000000000, 858993459200000000000, 68719476736000000000000
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,2
|
|
COMMENTS
|
Let T_n denote the n X n matrix with T_n(i,j) = 9^abs(i-j); then a(n) = abs(det(T_(n+1))). - Lechoslaw Ratajczak, Jun 17 2021
|
|
LINKS
|
|
|
FORMULA
|
|
|
PROG
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|