A014385 Number of connected regular bipartite graphs of degree 6 with 2n nodes.

1, 1, 7, 157, 62616, 78322916, 147252447227, 376962851057234, 1280344203366849969, 5666901233595672365908, 32193489258177947645878365, 231605871969834571512497704231, 2084558172807256752718977250960988

Offset: 6

Author

N. J. A. Sloane

Keywords

• nonn
• hard

References

• CRC Handbook of Combinatorial Designs, 1996, p. 648.
• I. A. Faradzev, Constructive enumeration of combinatorial objects, pp. 131-135 of Problèmes combinatoires et théorie des graphes (Orsay, 9-13 Juillet 1976). Colloq. Internat. du C.N.R.S., No. 260, Centre Nat. Recherche Scient., Paris, 1978.

Links

• B. D. McKay and E. Rogoyski, Latin squares of order ten, Electron. J. Combinatorics, 2 (1995) #N3.

Crossrefs

Column k=6 of A008326.

Extensions

More terms from Eric Rogoyski, May 15 1997

a(12)-a(18) from Andrew Howroyd, Apr 04 2020