A055119 - OEIS

%I #12 Mar 31 2017 22:24:04

%S 0,8,7,6,5,4,3,2,1,72,80,79,78,77,76,75,74,73,63,71,70,69,68,67,66,65,

%T 64,54,62,61,60,59,58,57,56,55,45,53,52,51,50,49,48,47,46,36,44,43,42,

%U 41,40,39,38,37,27,35,34,33,32,31,30,29,28,18,26,25,24,23,22,21,20,19

%N Base-9 complement of n (write n in base 9, then replace each digit with its base-9 negative).

%H Alois P. Heinz, <a href="/A055119/b055119.txt">Table of n, a(n) for n = 0..6560</a>

%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>

%Y Cf. A004488, A048647, A055115-A055126.

%Y Column k=9 of A248813.

%K base,easy,nonn

%O 0,2

%A _Henry Bottomley_, Apr 19 2000