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A056380 Number of step shifted (decimated) sequences using exactly six different symbols. 2

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

%S 0,0,0,0,0,360,2520,48060,317520,4109040,12923136,238785300,559279980,

%T 7612396920,37864711260,246263046840,787758864480,13282478342640,

%U 27723264985920,387585098313300,1595144664456720

%N Number of step shifted (decimated) sequences using exactly six 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 A056375(n)-6*A056374(n)+15*A056373(n)-20*A056372(n)+15*A056371(n)-6.

%Y Cf. A056375.

%K nonn

%O 1,6

%A _Marks R. Nester_

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Last modified April 20 12:36 EDT 2024. Contains 371844 sequences. (Running on oeis4.)