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%I #11 Dec 30 2023 16:51:02
%S 0,0,0,0,0,0,0,0,0,0,1,2,3,4,5,6,7,0,0,0,1,2,3,4,5,6,0,0,0,0,1,2,3,4,
%T 5,0,0,0,0,0,1,2,3,4,0,0,0,0,0,0,1,2,3,0,0,0,0,0,0,0,1,2,0,0,0,0,0,0,
%U 0,0,1,0,0,0,0,0,0,0,0,0,0,1,2,3,4,5,6,7,8,0
%N a(n)=(1/2)*Sum{|d(i)-e(i)|} where Sum{d(i)*9^i} is the base 9 representation of n and e(i) are the digits d(i) in nondecreasing order.
%p A037886 := proc(n)
%p local a,dgs,dgsE ;
%p a := 0 ;
%p dgs := convert(n,base,9);
%p dgsE := sort(dgs) ;
%p for i from 1 to nops(dgs) do
%p a := a+ abs(op(i,dgs)-op(i,dgsE)) ;
%p end do:
%p a/2 ;
%p end proc: # _R. J. Mathar_, Oct 19 2015
%K nonn,base
%O 1,12
%A _Clark Kimberling_
%E Definition swapped with A037877. - _R. J. Mathar_, Oct 19 2015
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