The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A339200

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Number of (undirected) Hamiltonian cycles on the n X 3 king graph.
(history; published version)

#15 by Vaclav Kotesovec at Wed Dec 09 05:10:26 EST 2020

STATUS

editing

approved

#14 by Vaclav Kotesovec at Wed Dec 09 05:10:18 EST 2020

FORMULA

Empirical g.f.: 2*x^2 * (3*x^4 + 4*x^3 + 2*x^2 - 2) / (6*x^4 + 8*x^3 + 15*x^2 + 4*x - 1). - Vaclav Kotesovec, Dec 09 2020

STATUS

approved

editing

#13 by Joerg Arndt at Sat Nov 28 06:55:00 EST 2020

STATUS

proposed

approved

#12 by Seiichi Manyama at Sat Nov 28 06:31:23 EST 2020

STATUS

editing

proposed

#11 by Seiichi Manyama at Sat Nov 28 04:33:17 EST 2020

CROSSREFS

Cf. AA339197A339197.

#10 by Seiichi Manyama at Sat Nov 28 04:33:05 EST 2020

CROSSREFS

Cf. AA339197.

#9 by Seiichi Manyama at Sat Nov 28 04:23:06 EST 2020

LINKS

Seiichi Manyama, <a href="/A339200/b339200.txt">Table of n, a(n) for n = 2..1000</a>

STATUS

approved

editing

#8 by Peter Luschny at Sat Nov 28 02:20:55 EST 2020

STATUS

reviewed

approved

#7 by Joerg Arndt at Sat Nov 28 01:54:27 EST 2020

STATUS

proposed

reviewed

#6 by Seiichi Manyama at Fri Nov 27 10:10:13 EST 2020

STATUS

editing

proposed