%I
%S 0,0,3,20,0,6,56,0,9,110,1848,12,208,210,270,272,0,124182,16017
%N a(n) = A260351(n)  A023811(n), where A260351 is the limit of the orbit of 0 under x > x + (largest digit not in x) and A023811 is the largest metadrome, both in base n.
%C a(n) is a multiple of n1.
%C Conjecture: a(3k+1) = 3k.
%e a(10) = 123456798  123456789 = 9.
%t Table[s = 0; t = 1; While[t != 0, t = Complement[Range[0, b  1], IntegerDigits[s, b]][[1]]; s = s + t]; s  Total[(#1 b^#2) & @@@ Transpose@ {Range[b  1], Reverse@ (Range[b  1]  1)}], {b, 2, 8}] (* _Michael De Vlieger_, Jul 24 2015, after _Hans Havermann_ at A260351 *)
%Y Cf. A023811, A260351.
%K nonn,more,base
%O 2,3
%A _Hans Havermann_, Jul 23 2015
%E a(14) from _Giovanni Resta_, Jul 24 2015
%E a(15)a(22) from _Hiroaki Yamanouchi_, Aug 01 2015
