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A349635
Number of n-node antipodal graphs.
0
1, 1, 0, 2, 1, 5, 8, 73, 660, 9909
OFFSET
1,4
LINKS
Eric Weisstein's World of Mathematics, Antipodal Graph
EXAMPLE
For n=1, K_1 is trivially antipodal, so a(1)=1.
For n=2, K_2=P_2 is antipodal, so a(2)=1.
For n=3, neither K_3=C_3 nor P_3 is antipodal, so a(3)=0.
For n=4, P_4 and C_4 are antipodal, so a(4)=2.
CROSSREFS
Sequence in context: A222542 A318052 A026078 * A176665 A199050 A306539
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Nov 23 2021
STATUS
approved