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A056399
Number of step shifted (decimated) sequence structures using exactly five different symbols.
1
0, 0, 0, 0, 1, 9, 26, 299, 1183, 10701, 24736, 349241, 626053, 6680979, 26364610, 137247254, 353304459, 4826418027, 8199440662, 93679529503, 315943737331, 1913783074461, 4382586624256, 60629067776483
OFFSET
1,6
COMMENTS
See A056371 for an explanation of step shifts. Permuting the symbols will not change the structure.
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
CROSSREFS
Column 5 of A288620.
Cf. A056379.
Sequence in context: A322764 A325585 A056409 * A256927 A135864 A074954
KEYWORD
nonn
STATUS
approved