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A352068
Number of C4-free graphs (graphs with no induced cycle of length four) with n nodes.
1
1, 2, 4, 10, 28, 100, 441, 2574, 19849, 201682, 2647682, 43930398, 902341498
OFFSET
1,2
CROSSREFS
Euler transform of A079566.
Sequence in context: A085549 A374174 A022492 * A123429 A207018 A006841
KEYWORD
nonn,more
AUTHOR
STATUS
approved