OFFSET
1,3
COMMENTS
Dan Asimov asks if the graph is trying to converge to the Cantor (or Devil's Staircase) function. - N. J. A. Sloane, Aug 25 2024
LINKS
Max Alekseyev, Table of n, a(n) for n = 1..410
Max Alekseyev, Sage program for lines covering points, Github, Aug 19 2024
N. J. A. Sloane, Sketch to illustrate first 11 terms. Solutions (representing points by their X-coordinates): a(5)=2: {1,5}{2,3,4}; a(9)=3: {1,2}{3,5,7,9}{4,6,8}; a(11)=4: {1,5}{2,3,4}{6,7,10}{8,9,11}.
N. J. A. Sloane, A Nasty Surprise in a Sequence and Other OEIS Stories, Experimental Mathematics Seminar, Rutgers University, Oct 10 2024, Youtube video; Slides [Mentions this sequence]
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist and N. J. A. Sloane, Aug 18 2024
EXTENSIONS
Terms a(19) onward from Max Alekseyev, Aug 18 2024
STATUS
approved