id:A112950 - OEIS Search Results

Search: id:A112950

Displaying 1-1 of 1 results found.

page 1

Number of unrooted regular planar maps of valency 7 with 2n vertices (considered up to orientation-preserving homeomorphisms).

+0
2

39, 80600, 513654400, 4742588317460, 53786496621600480, 696401295433093120200, 9891028759926839453714800, 150420303869075439022288355100, 2410984386008752279281147366400400 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`No closed formula is known.`
	LINKS	`Z. C. Gao, V. A. Liskovets and N. C. Wormald, Enumeration of unrooted odd-valent regular planar maps, Preprint, 2005.`
	CROSSREFS	`Cf. A112949.` `Sequence in context: A145619 A027490 A115462 this_sequence A023931 A067159 A013306` `Adjacent sequences: A112947 A112948 A112949 this_sequence A112951 A112952 A112953`
	KEYWORD	`nonn`
	AUTHOR	`Valery A. Liskovets (liskov(AT)im.bas-net.by), Oct 10 2005`

page 1

Search completed in 0.002 seconds

Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research