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A052437 Number of simple unlabeled n-node graphs with 1 center node. 5

%I #18 Nov 23 2021 18:03:13

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

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

%H S. K. Ghosal, J. K. Mandal, <a href="https://doi.org/10.1016/j.protcy.2013.12.341">Stirling Transform Based Color Image Authentication</a>, Procedia Technology, 2013 Volume 10, 2013, Pages 95-104.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/GraphCenter.html">Graph Center.</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/StirlingTransform.html">Stirling Transform.</a>

%Y Column 1 of A294525 for n > 1.

%Y Cf. A052438, A052439, A052440, A052441.

%K nonn,more

%O 1,4

%A _Eric W. Weisstein_

%E a(8)-a(10) from _Andrew Howroyd_, Nov 02 2017

%E a(11)-a(12) from _Sean A. Irvine_, Nov 23 2021

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Last modified May 15 03:57 EDT 2024. Contains 372536 sequences. (Running on oeis4.)