Question: Why dsolve return blank result?

readshare(gfun,analysis):
with(gfun):
orec:={y(n)+(n+1)/x*y(n+1)-y(n+2)-(n+2)/x*y(n+3)=0};
erec:=borel(orec,y(n));
edeq:=rectodiffeq(erec,y(n),Q(w));
sol := dsolve(edeq,Q(w));

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