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A056389
Number of primitive (aperiodic) step shifted (decimated) sequences using exactly five different symbols.
1
0, 0, 0, 0, 30, 900, 2800, 32010, 139080, 1276170, 2960940, 41625330, 75086430, 801519500, 3162262140, 16463761470, 42395689530, 579164323020, 983928850100, 11241276012750, 37913042832500
OFFSET
1,5
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)*A056379(n/d) where d|n.
CROSSREFS
Sequence in context: A158580 A171335 A097313 * A056379 A320670 A171304
KEYWORD
nonn
STATUS
approved