A052437 Number of simple unlabeled n-node graphs with 1 center node.

1, 0, 1, 2, 8, 29, 180, 1463, 20093, 474063, 20334351, 1602439752

Offset

1,4

Links

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

S. K. Ghosal, J. K. Mandal, Stirling Transform Based Color Image Authentication, Procedia Technology, 2013 Volume 10, 2013, Pages 95-104.

Eric Weisstein's World of Mathematics, Graph Center.

Eric Weisstein's World of Mathematics, Stirling Transform.

Crossrefs

Column 1 of A294525 for n > 1.

Cf. A052438, A052439, A052440, A052441.

Sequence in context: A287045 A009419 A000162 * A131318 A010749 A299415

Adjacent sequences: A052434 A052435 A052436 * A052438 A052439 A052440

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