%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