|
Search: id:A056416
|
|
|
| A056416 |
|
Number of step cyclic shifted sequences using exactly three different symbols. |
|
+0
3
|
|
| 0, 0, 1, 6, 9, 56, 51, 258, 380, 1500, 1611, 12298, 10245, 57108, 121721, 346146, 474489, 3589534, 3397143, 21984804, 41570773, 142619388, 186027579, 1476414178, 1694455320, 8146633638, 15690141155
(list; graph; listen)
|
|
|
OFFSET
|
1,4
|
|
|
COMMENT
|
See A056371 for an explanation of step shifts. Under step cyclic shifts, abcde, bdace, bcdea, cdeab and daceb etc. are equivalent.
|
|
REFERENCES
|
M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.
|
|
FORMULA
|
A056411(n)-3*A002729(n)+3.
|
|
CROSSREFS
|
Cf. A056411.
Sequence in context: A126110 A098662 A056425 this_sequence A061401 A046498 A119738
Adjacent sequences: A056413 A056414 A056415 this_sequence A056417 A056418 A056419
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Marks R. Nester (nesterm(AT)dpi.qld.gov.au)
|
|
|
Search completed in 0.004 seconds
|
