OFFSET
1,1
COMMENTS
18 appears to be the only term with k=1, there are no other terms with k=1 as well as with k=3,8,9 below 10^100. - Max Alekseyev, Jan 25 2015
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..59 (terms < 10^38)
EXAMPLE
4752 = (4+4)(4+7)(4+5)(4+2).
MATHEMATICA
L={}; Do[Print@ n; Do[p = Reverse/@ IntegerPartitions[ k, {n}, Range[0, 9]]; Do[z = Times@@ (e + k); If[ Sort@ IntegerDigits@ z == e, Print[{z, k}]; AppendTo[L, z]], {k, 9}, {e, p}], {k, 9*n}], {n, 2, 13}]; Sort@ L (* terms < 10^13, Giovanni Resta, Jul 24 2015 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Erich Friedman, Jun 27 2000
EXTENSIONS
Offset corrected and more terms added by Max Alekseyev, Jan 23 2015
STATUS
approved