OFFSET
1,6
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..25000
Rémy Sigrist, C program for A329257
Rémy Sigrist, Colored scatterplot of the first 250000 terms (where the color denotes the parity of n)
EXAMPLE
The first terms, alongside the corresponding k's, are:
n a(n) k's
--- ---- ------------
1 0 {}
2 0 {}
3 1 {1}
4 0 {}
5 0 {}
6 2 {1, 2}
7 1 {3}
8 1 {3}
9 2 {1, 4}
10 0 {}
11 1 {4}
12 1 {3}
13 2 {1, 5}
14 1 {3}
15 2 {4, 5}
16 3 {2, 4, 6}
17 4 {2, 3, 4, 5}
PROG
(C) See Links section.
CROSSREFS
KEYWORD
nonn,look
AUTHOR
Rémy Sigrist, Nov 09 2019
STATUS
approved