|
|
A189738
|
|
a(1)=3, a(2)=4, a(n) = 3*a(n-1) + 4*a(n-2).
|
|
14
|
|
|
3, 4, 24, 88, 360, 1432, 5736, 22936, 91752, 367000, 1468008, 5872024, 23488104, 93952408, 375809640, 1503238552, 6012954216, 24051816856, 96207267432, 384829069720, 1539316278888, 6157265115544, 24629060462184, 98516241848728, 394064967394920
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
FORMULA
|
|
|
MATHEMATICA
|
LinearRecurrence[{3, 4}, {3, 4}, 40]
|
|
PROG
|
(Maxima) a[1]:3$ a[2]:4$ a[n]:=3*a[n-1]+4*a[n-2]$ makelist(a[n], n, 1, 25); /* Bruno Berselli, May 24 2011 */
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|