A056385 Number of primitive (aperiodic) step shifted (decimated) sequences using a maximum of six different symbols.

6, 30, 120, 720, 2010, 23820, 46950, 434700, 1683450, 15126810, 36284466, 547180200, 1088416050, 13060942950, 58782162480, 352913410080, 1057916846190, 16926687985950, 33853322280030

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)*A056375(n/d) where d|n.