OFFSET
1,1
MATHEMATICA
f[s_] := Append[s, Floor[(13 + Plus @@ s)/6]]; Nest[f, {2}, 57] (* Robert G. Wilson v, Jul 08 2006 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Graeme McRae, Jun 10 2006
EXTENSIONS
More terms from Robert G. Wilson v, Jul 08 2006
STATUS
approved