OFFSET
1,1
LINKS
FORMULA
G.f. 12*x*(1+20*x) / ( (10*x-1)*(x-1) ). - R. J. Mathar, Aug 24 2011
a(n) = 12 *A033175(n-1). - R. J. Mathar, Aug 24 2011
MATHEMATICA
4(10^Range[20]-7) (* or *) LinearRecurrence[{11, -10}, {12, 372}, 20] (* Harvey P. Dale, Nov 22 2019 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved