%I #5 Oct 04 2012 10:28:40
%S 0,4,8,2,6,0,4,8,2,6,40,44,48,42,46,40,44,48,42,46,80,84,88,82,86,80,
%T 84,88,82,86,20,24,28,22,26,20,24,28,22,26,60,64,68,62,66,60,64,68,62,
%U 66,0,4,8,2,6,0,4,8,2,6,40,44,48,42,46,40,44,48,42,46,80,84,88,82,86
%N Generalized nim sum n + n + n + n in base 10; carryless multiplication 4 X n base 10.
%H David Applegate, Marc LeBrun and N. J. A. Sloane, <a href="http://neilsloane.com/doc/carry1.pdf">Carryless Arithmetic (I): The Mod 10 Version</a>.
%Y Cf. A001477 for carryless 1 X n, A004520 for carryless 2 X 10 base 10, A008592 for carryless 10 X n.
%K base,nonn
%O 0,2
%A _Henry Bottomley_, Feb 19 2001
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