OFFSET
1,1
COMMENTS
Altogether 1579 such initial values exist: 27, ..., 9232.
LINKS
FORMULA
1579 solutions to A025586(x) = 9232.
MATHEMATICA
c[x_]:=c[x]=(1-Mod[x, 2])*(x/2)+Mod[x, 2]*(3*x+1); c[1]=1; fpl[x_]:=Delete[FixedPointList[c, x], -1] {ta=Table[0, {1580}], u=1}; Do[If[Equal[Max[fpl[n]], 9232], ta[[u]]=n; u=u+1], {n, 1, 9232}]; ta
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
Labos Elemer, Jun 14 2004
STATUS
approved