OFFSET
1,5
COMMENTS
Conjecture: All rows are unimodal (increasing, then decreasing).
Each row is a palindrome.
A333333 is analogous with the restriction that the colorings must be connected.
LINKS
Mathematics Stack Exchange, Number of 2-colorings of edges of the n-dimensional cube?.
Wikipedia, Hypercube
EXAMPLE
Table begins:
n\k| 0 1 2 3 4 5 6 7 8 9 10 11 12 ...
---+-------------------------------------------------------
1| 1, 1;
2| 1, 1, 2, 1, 1;
3| 1, 1, 4, 9, 18, 24, 30, 24, 18, 9, 4, 1, 1;
4| 1, 1, 6, 24, 140, 604, 2596, 9143, ...
5| 1, 1, 8, 50, 608, ...
6| 1, 1, 10, 89, ...
CROSSREFS
KEYWORD
nonn,tabf,more
AUTHOR
Peter Kagey, Mar 20 2020
STATUS
approved