A349635 Number of n-node antipodal graphs.

1, 1, 0, 2, 1, 5, 8, 73, 660, 9909

Offset

1,4

Links

Table of n, a(n) for n=1..10.

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

Adjacent sequences: A349632 A349633 A349634 * A349636 A349637 A349638

Keyword

nonn,more

Author

Eric W. Weisstein, Nov 23 2021

Status

approved