OFFSET
1,1
COMMENTS
An exclusionary biquadrate m^4 is one sharing no digit in common with its root m made up of distinct digits. Is a subsequence of A113316. Conjectured to be complete.
REFERENCES
H. Ibstedt, Solution to Problem 2623, "Exclusionary Powers", pp. 346-9, Journal of Recreational Mathematics, vol. 32 No.4 2003-4 Baywood NY.
CROSSREFS
KEYWORD
base,nonn,fini
AUTHOR
Lekraj Beedassy, Oct 26 2005
EXTENSIONS
Corrected by Don Reble, Nov 22 2006
STATUS
approved