OFFSET
1,1
MATHEMATICA
f[ n_Integer ] := (d = Divisors[ n ]; l = Length[ d ]; If[ EvenQ[ l ], ToExpression[ ToString[ d[[ l/2 ] ]] <> ToString[ d[[ l/2 + 1 ]] ]], ToExpression[ ToString[ d[[ l/2 + .5 ] ]] <> ToString[ d[[ l/2 + .5 ] ]] ]] ); NestList[ f, 8, 25 ]
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Robert G. Wilson v, Aug 09 2001
STATUS
approved