OFFSET
0
COMMENTS
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 0..10000
Eric Weisstein's World of Mathematics, Repdigit
Wikipedia, Repdigit
FORMULA
a(n) = if A043537(n) = 1 then 1 else 0. - Reinhard Zumkeller, Nov 29 2012
MATHEMATICA
Table[If[Count[DigitCount[n], 0]==9, 1, 0], {n, 0, 120}] (* Harvey P. Dale, Jun 21 2022 *)
PROG
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Reinhard Zumkeller, Dec 09 2011
STATUS
approved