OFFSET
1,2
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..284
Eric Weisstein's World of Mathematics, Independent Edge Set
Eric Weisstein's World of Mathematics, Matching
Eric Weisstein's World of Mathematics, Torus Grid Graph
FORMULA
T(1, m) = A000032(m) for m<>2.
EXAMPLE
The start of the sequence as table:
* 1 2 4 7 11 18 ...
* 2 7 32 108 342 1104 ...
* 4 32 370 2764 19874 144108 ...
* 7 108 2764 41025 576287 8205424 ...
* 11 342 19874 576287 15637256 430996378 ...
* 18 1104 144108 8205424 430996378 23079663560 ...
* ...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Andrew Howroyd, Mar 13 2016
STATUS
approved