id:A123870 - OEIS Search Results

Search: id:A123870

Displaying 1-1 of 1 results found.

page 1

Order of minimal triangulation of nonorientable closed surface with n cross-caps (N_n).

+0
1

4, 6, 8, 9, 9, 9, 10, 10, 11, 11, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25 (list; graph; listen)

	OFFSET	`0,1`
	REFERENCES	`J. L. Gross and J. Yellen, eds., Handbook of Graph Theory, CRC Press, 2004; p. 742.`
	FORMULA	`Ceil( (7+sqrt(1+24*g))/2 ), except a(2) = 8, a(3) = 9.`
	CROSSREFS	`Adjacent sequences: A123867 A123868 A123869 this_sequence A123871 A123872 A123873` `Sequence in context: A129808 A077649 A132025 this_sequence A085049 A019516 A031977`
	KEYWORD	`nonn`
	AUTHOR	`njas, Nov 19 2006`

page 1

Search completed in 0.002 seconds

Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.

AT&T Labs Research