%I #19 May 09 2021 05:07:59
%S 0,1,1,2,4,3,3,4,4,5,7,8,10,13,11,10,10,9,9,10,10,11,13,12,12,13,13,
%T 14,16,17,19,22,22,23,25,26,28,31,33,36,40,37,35,34,32,31,31,30,30,31,
%U 29,28,28,27,27,28,28,29,31,30,30,31,31,32,34,35,37,40,38,37,37,36,36,37
%N Partial sums of A065363.
%H Daniel Forgues, <a href="/A174574/b174574.txt">Table of n, a(n) for n = 0..100000</a>
%F a(0) = 0, a(n) = a(n-1) + A065363(n), n >= 1.
%F a(n) <= n with equality iff n belongs to A003462. - _Rémy Sigrist_, Oct 05 2019
%o (Python)
%o def a065363(n):
%o s=0
%o x=0
%o while n>0:
%o x=n%3
%o n//=3
%o if x==2:
%o x=-1
%o n+=1
%o s+=x
%o return s
%o l=[0]
%o for n in range(1, 101): l.append(l[n - 1] + a065363(n))
%o print(l) # _Indranil Ghosh_, Jun 07 2017
%Y Cf. A003462, A065363, A140267.
%K nonn,base
%O 0,4
%A _Daniel Forgues_, Mar 23 2010
|