OFFSET
1,2
COMMENTS
In the class of recurrence sequences a(n+1)=sopfr(C*a(n)+D), with C=3, D=1.
FORMULA
a(n+1)=A001414(3*a(n)+1)
MATHEMATICA
See A136136
Most[FixedPointList[Total[Times@@@FactorInteger[3#+1]]&, 1]] (* Harvey P. Dale, Dec 19 2022 *)
CROSSREFS
KEYWORD
fini,nonn
AUTHOR
Carlos Alves, Dec 16 2007
STATUS
approved