OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 5], {4, 4}]>0, 1, 0], {n, 1500}], {0, 1}][[;; , 2]] (* Harvey P. Dale, Feb 18 2025 *)
CROSSREFS
KEYWORD
nonn,base,changed
AUTHOR
STATUS
approved