|
%I #16 Jan 01 2024 08:03:19
%S 0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1,1,0,0,0,0,0,1,1,1,
%T 1,0,0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1,1,0,0,1,1,1,1,1,1,1,0,1,1,1,1,1,
%U 1,1,1,1,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1,1
%N Number of i such that d(i) > d(i-1), where Sum_{i=0..m} d(i)*8^i is the base-8 representation of n.
%e 136 is written as 210 in base 8, and we have 2 inequalities 2>1 and 1>0, so a(136) = 2.
%p A037823 := proc(n)
%p a := 0 ;
%p dgs := convert(n,base,8);
%p for i from 2 to nops(dgs) do
%p if op(i,dgs)>op(i-1,dgs) then
%p a := a+1 ;
%p end if;
%p end do:
%p a ;
%p end proc: # _R. J. Mathar_, Oct 16 2015
%Y Cf. A037806.
%K nonn,base
%O 1,136
%A _Clark Kimberling_
%E Sign in name corrected by _R. J. Mathar_, Oct 16 2015
|
