OFFSET
0,3
COMMENTS
(sum of digits)^x = (product of digits) Do not work for any number if x > 4. [From Boris Hostnik (megpplus(AT)siol.net), Sep 04 2009]
EXAMPLE
88888888 is in the sequence because (1) squaded sum of its digits is (8+8+8+8+8+8+8+8)^4=16777216, (2) the product of its digits is 8*8*8*8*8*8*8*8=16777216 ; 16777216=16777216
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Boris Hostnik (megpplus(AT)siol.net), Aug 28 2009
STATUS
approved