|
|
A025778
|
|
Expansion of 1/((1-x)(1-x^5)(1-x^8)).
|
|
0
|
|
|
1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6, 7, 7, 8, 8, 9, 10, 10, 11, 12, 13, 14, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 32, 34, 35, 36, 38, 39, 41, 42, 43, 45, 46, 48, 50, 51, 53, 54, 56
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,6
|
|
COMMENTS
|
Number of partitions of n into parts 1, 5 and 8. - Michel Marcus, Oct 12 2014
|
|
LINKS
|
Index entries for linear recurrences with constant coefficients, signature (1, 0, 0, 0, 1, -1, 0, 1, -1, 0, 0, 0, -1, 1).
|
|
FORMULA
|
a(n)= +a(n-1) +a(n-5) -a(n-6) +a(n-8) -a(n-9) -a(n-13) +a(n-14). - R. J. Mathar, Aug 21 2014
|
|
MATHEMATICA
|
CoefficientList[Series[1/((1-x)(1-x^5)(1-x^8)), {x, 0, 80}], x] (* or *) LinearRecurrence[{1, 0, 0, 0, 1, -1, 0, 1, -1, 0, 0, 0, -1, 1}, {1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5}, 80] (* Harvey P. Dale, Oct 24 2017 *)
|
|
PROG
|
(PARI) Vec(1/((1-x)*(1-x^5)*(1-x^8)) + O(x^100)) \\ Michel Marcus, Oct 12 2014
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|