A056390 Number of primitive (aperiodic) step shifted (decimated) sequences using exactly six different symbols.

0, 0, 0, 0, 0, 360, 2520, 48060, 317520, 4109040, 12923136, 238784940, 559279980, 7612394400, 37864711260, 246262998780, 787758864480, 13282478024760, 27723264985920, 387585094204260, 1595144664454200

Offset: 1

Author

Marks R. Nester

Keywords

• nonn

Comments

See A056371 for an explanation of step shifts.

References

• 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]

Formula

Sum mu(d)*A056380(n/d) where d|n.