OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
ds[n_] := DeleteCases[NestWhileList[FromDigits[Rest[IntegerDigits[#]]] &, n, # > 9 &], 0]; Select[Range[2, 52]^4, Or @@ IntegerQ /@ (Rest[ds[#]]^(1/4)) &] (* Jayanta Basu, Jul 10 2013 *)
fpQ[n_]:=Module[{idn=IntegerDigits[n]}, AnyTrue[Select[Table[Surd[ FromDigits[ Take[ idn, -i]], 4], {i, Length[idn]-1}], #>0&], IntegerQ]]; Select[ Range[60]^4, fpQ] (* The program uses the AnyTrue function from Mathematica version 10 *) (* Harvey P. Dale, Aug 06 2016 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
EXTENSIONS
Name clarified by Sean A. Irvine, Jan 26 2021
STATUS
approved