A052441 Number of simple unlabeled n-node graphs with 5 center nodes.

0, 0, 0, 0, 18, 0, 129, 1390, 29987, 1015304, 59286916, 5764417079

Offset

1,5

Links

Table of n, a(n) for n=1..12.

Eric Weisstein's World of Mathematics, Graph Center

Crossrefs

Column 5 of A294525 for n > 5.

Cf. A052437, A052438, A052439, A052440.

Sequence in context: A096306 A335187 A231962 * A221394 A025602 A088126

Adjacent sequences: A052438 A052439 A052440 * A052442 A052443 A052444

Keyword

nonn,more

Author

Eric W. Weisstein

Extensions

a(8)-a(10) from Andrew Howroyd, Nov 02 2017

a(11)-a(12) from Sean A. Irvine, Nov 23 2021

Status

approved