|
|
A103878
|
|
Expansion of x / ((1-12x)(1-15x)(1-20x)(1-30x)(1-60x)).
|
|
3
|
|
|
0, 1, 137, 12019, 874853, 58067611, 3673451957, 226576032859, 13790081534933, 833490615528571, 50196582942983477, 3017503478665411099, 181223386494229073813, 10878637590184410995131, 652876078076017863582197, 39177315318319288337595739
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,3
|
|
LINKS
|
|
|
FORMULA
|
a(n) = (1/12) (12^n - 4*15^n + 6*20^n - 4*30^n + 60^n).
|
|
PROG
|
(PARI) concat(0, Vec(x/(-6480000*x^5+1620000*x^4-153000*x^3+6750*x^2-137*x+1) + O(x^100))) \\ Colin Barker, Apr 26 2015
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|