OFFSET
1,1
COMMENTS
A157671 is a subsequence. - Reinhard Zumkeller, Jan 20 2010
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
FORMULA
a(n) = g(n,0,0) with g(n,m,k) = if n=0 then k else if k=3^m-1 then g(n-1,m,3*(k+1)/2+1) else g(n-1,m,k+1).
A171960(a(n)) < a(n). - Reinhard Zumkeller, Jan 20 2010
MATHEMATICA
Select[Range[150], Ceiling[Log[3, 2*#+1]] > IntegerLength[#, 3] &] (* Amiram Eldar, Apr 03 2025 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Reinhard Zumkeller, Oct 19 2007
STATUS
approved