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A089235
4-symbol sequence with period 96.
0
0, 1, 2, 3, 0, 3, 1, 0, 2, 3, 2, 1, 0, 3, 1, 3, 2, 1, 2, 0, 1, 3, 1, 2, 0, 2, 3, 0, 1, 0, 2, 0, 3, 1, 2, 3, 2, 0, 1, 0, 3, 2, 1, 3, 1, 0, 3, 0, 2, 3, 1, 3, 0, 1, 2, 1, 3, 2, 0, 3, 0, 1, 3, 2, 3, 0, 2, 1, 2, 3, 1, 0, 1, 2, 0, 3, 2, 3, 1, 2, 1, 0, 2, 1, 3, 0, 3, 2, 0, 2, 1, 0, 1, 3, 0, 2, 0, 1, 2
OFFSET
0,3
COMMENTS
In each period there are 24 of each of the 4 digits. Properties:
1) No digit is repeated in the sequence. No group of digits is repeated in the sequence.
2) All possible four-digit combinations (taking rule #1 in account) are represented in the forward reading of the sequence.
3) All possible four-digit combinations (taking rule #1 in account) are represented in the backward reading of the sequence.
REFERENCES
Erik Evenson, posting to sci.math, Jan 09, 2004
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).
CROSSREFS
Sequence in context: A132385 A358840 A191716 * A347794 A317948 A334291
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jan 15 2004
STATUS
approved