OFFSET
0,6
COMMENTS
Starts to differ from A114044 at n=50.
LINKS
Index entries for linear recurrences with constant coefficients, signature (1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).
FORMULA
G.f. : 1/(1-x-x^5-x^10-x^25).
a(n) = +a(n-1) +a(n-5) +a(n-10) +a(n-25).
EXAMPLE
a(8)=5 counts 5 compositions 1+1+1+1+1+1+1+1 = 1+1+1+5 = 1+1+5+1 = 1+5+1+1 = 5+1+1+1.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
R. J. Mathar, Feb 17 2022
STATUS
approved