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A373037
Number of edge subsets E of the n X n square grid graph such that E contains a path between the top left node and the bottom right node.
3
1, 7, 1135, 3329245, 167176484530, 140386491543732211, 1946586793700869420041631, 442196286688432698682908745730140, 1637130627941780284200104764061689410361366, 98421463469915727265279069074012296351284158838933045, 95824439185976594319538143712857075522828165117771969008567719465
OFFSET
1,2
COMMENTS
a(n)/A053765(n) is the probability that the top left and bottom right vertices of the n X n square grid graph are still connected after each edge has been independently deleted with probability 1/2.
LINKS
CROSSREFS
Main diagonal of A373036.
Sequence in context: A259251 A259253 A203871 * A144927 A202133 A229431
KEYWORD
nonn
AUTHOR
EXTENSIONS
a(11) onwards from Eugene Nonko, Oct 28 2024
STATUS
approved