OFFSET
1,1
COMMENTS
A007953(a(n)) = 15; number of repdigits = #{555,33333,1^15} = A242627(15) = 3. - Reinhard Zumkeller, Jul 17 2014
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[1000], Total[IntegerDigits[#]] == 15 &]
PROG
(Magma) [n: n in [1..1000] | &+Intseq(n) eq 15];
(Haskell)
a235226 n = a235226_list !! (n-1)
a235226_list = filter ((== 15) . a007953) [0..]
-- Reinhard Zumkeller, Jul 17 2014
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Vincenzo Librandi, Jan 05 2014
STATUS
approved