OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (25,-206,656,-672).
FORMULA
a(n) = -2*2^n/25 +4*4^n/3 -343*7^n/75 +108*12^n/25. R. J. Mathar, Jun 20 2013
MATHEMATICA
CoefficientList[Series[1/((1-2x)(1-4x)(1-7x)(1-12x)), {x, 0, 20}], x] (* or *) LinearRecurrence[{25, -206, 656, -672}, {1, 25, 419, 5981}, 20] (* Harvey P. Dale, Sep 24 2021 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved