login
A037878
(1/2)*Sum{|d(i)-e(i)|}, where Sum{d(i)*10^i} is base 10 representation of n and e(i) are digits d(i) in nonincreasing order, for i=0,1,...,m.
2
0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 9
OFFSET
1,20
MAPLE
A037878 := proc(n)
local a, dgs, dgsE ;
a := 0 ;
dgs := convert(n, base, 10);
dgsE := sort(dgs, `>`) ;
for i from 1 to nops(dgs) do
a := a+ abs(op(i, dgs)-op(i, dgsE)) ;
end do:
a/2 ;
end proc: # R. J. Mathar, Oct 19 2015
CROSSREFS
Sequence in context: A280665 A356996 A037860 * A107652 A186734 A196096
KEYWORD
nonn,base
EXTENSIONS
Definition swapped with A037887. - R. J. Mathar, Oct 19 2015
STATUS
approved