|
Search: id:A056436
|
|
|
| A056436 |
|
Step cyclic shifted sequence structures using exactly four different symbols. |
|
+0
1
|
|
| 0, 0, 0, 1, 1, 11, 13, 83, 162, 930, 1369, 13730, 16421, 124702, 355793, 1356781, 2555043, 25933814, 32931815, 283330733, 720489755, 3308255032, 5763641923, 60874698532, 93543112676, 600086810852
(list; graph; listen)
|
|
|
OFFSET
|
1,6
|
|
|
COMMENT
|
See A056371 for an explanation of step shifts. Under step cyclic shifts, abcde, bdace, bcdea, cdeab and daceb etc. are equivalent. 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.
|
|
FORMULA
|
A056431(n)-A056430(n).
|
|
CROSSREFS
|
Cf. A056417.
Sequence in context: A116436 A056446 A023317 this_sequence A089824 A086549 A108090
Adjacent sequences: A056433 A056434 A056435 this_sequence A056437 A056438 A056439
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Marks R. Nester (nesterm(AT)dpi.qld.gov.au)
|
|
|
Search completed in 0.002 seconds
|
