OFFSET
3,1
FORMULA
G.f.: GF4(z;m=4) = z^3*(839 - 48034*z + 1020994*z^2 - 6315109*z^3 - 125732218*z^4 + 2906593672*z^5 - 19318662264*z^6 - 132970633714*z^7 + 4088983763169*z^8 - 44795079122946*z^9 + 308476276414274*z^10 - 1459296681369171*z^11 + 4631899460241844*z^12 - 7747445435417248*z^13 - 9002247331934848*z^14 + 106298680448237476*z^15 - 371569253030465479*z^16 + 786920087358011162*z^17 - 1036342589202760506*z^18 + 621638121199512933*z^19 + 473980516442576550*z^20 - 1356311903948266536*z^21 + 1141880919093176760*z^22 -255315553951597650*z^23 - 197701524871970625*z^24 + 83458617238946250*z^25 + 18532381423893750*z^26 + 519742224421875*z^27)/((1-z)^13*(1-3*z)^10*(1-5*z)^7*(1-7*z)^4*(1-9*z)).
CROSSREFS
KEYWORD
easy,sign,uned
AUTHOR
Johannes W. Meijer, Feb 20 2009
STATUS
approved