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A347724
Number of irredundant sets in the n-triangular grid graph.
2
2, 4, 17, 102, 925, 12508, 274369, 8955595, 447311286, 34069625935, 3993234239468
OFFSET
0,1
LINKS
Eric Weisstein's World of Mathematics, Irredundant Set
Eric Weisstein's World of Mathematics, Triangular Grid Graph
CROSSREFS
Sequence in context: A212581 A305786 A009319 * A009323 A307125 A247260
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Sep 11 2021
EXTENSIONS
Missing a(0) inserted and a(7)-a(10) from Andrew Howroyd, Jan 19 2022
STATUS
approved