OFFSET
2,2
COMMENTS
Induced cycles are sometimes called chordless cycles (but some definitions require chordless cycles to have a cycle length of at least 4).
LINKS
Andrew Howroyd, Table of n, a(n) for n = 2..497
Eric Weisstein's World of Mathematics, Chordless Cycle.
Eric Weisstein's World of Mathematics, Grid Graph.
Wikipedia, Cycle (graph theory).
FORMULA
T(m,n) = T(n,m).
EXAMPLE
Array begins:
========================================================
m\n| 2 3 4 5 6 7 8 9 ...
---+----------------------------------------------------
2 | 1 2 3 4 5 6 7 8 ...
3 | 2 5 9 14 20 27 35 44 ...
4 | 3 9 24 58 125 251 490 948 ...
5 | 4 14 58 229 749 2180 6188 17912 ...
6 | 5 20 125 749 3436 13350 50203 196918 ...
7 | 6 27 251 2180 13350 65772 308212 1535427 ...
8 | 7 35 490 6188 50203 308212 1743247 10614143 ...
9 | 8 44 948 17912 196918 1535427 10614143 78586742 ...
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Andrew Howroyd, Jan 29 2023
STATUS
approved