OFFSET
1,3
LINKS
H. Harborth, Endliche 0-1-Folgen mit gleichen Teilblöcken, Journal für Mathematik, 271 (1974) 139-154.
Sean A. Irvine, Java program (github)
EXAMPLE
a(5) = 6 because we have: {0, 0, 1, 0, 0}, {1, 1, 0, 1, 1}, {0, 1, 0, 0, 1},
{0, 1, 1, 0, 1}, {1, 0, 0, 1, 0}, {1, 0, 1, 1, 0}. The first two words have autocorrelation polynomial equal to 1 + z^3 + z^4, the last four words have autocorrelation polynomial equal to 1 + z^4. - Geoffrey Critzer, Apr 13 2022
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Jeffrey Shallit, Feb 20 2013
More terms from Sean A. Irvine, Jun 20 2021
STATUS
approved