A056376 - OEIS

%I #7 Aug 22 2017 20:53:10

%S 0,2,4,10,10,38,26,94,102,278,214,1246,702,2798,4342,8926,8230,44222,

%T 29202,136030,176750,419870,381490,2150398,1678254,5593998,7461166,

%U 22553406,19175158,134391038,71585134

%N Number of step shifted (decimated) sequences using exactly two different symbols.

%C See A056371 for an explanation of step shifts.

%D M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia. [See A056391 for pdf file of Chap. 2]

%F A056371(n)-2.

%Y Cf. A056371.

%K nonn

%O 1,2

%A _Marks R. Nester_