OFFSET
1,2
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..937 (all terms up to 5 million)
MATHEMATICA
b5s4Q[n_]:=Module[{idn5=IntegerDigits[n, 5]}, idn5[[1]]==4&&idn5 == Reverse[ idn5]]; (#+1)/5&/@Select[Range[30000], b5s4Q] (* Harvey P. Dale, Jun 22 2022 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved