id:A123860 - OEIS Search Results

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Ceil( (7+sqrt(49+24*n))/2 ).

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4, 6, 7, 8, 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	`-2,1`
	REFERENCES	`J. L. Gross and J. Yellen, eds., Handbook of Graph Theory, CRC Press, 2004; p. 742.`
	MAPLE	`f:=n->ceil( (7+sqrt(49+24*n))/2 );`
	CROSSREFS	`Cf. A000703.` `Sequence in context: A006185 A021876 A005670 this_sequence A122817 A074764 A101087` `Adjacent sequences: A123857 A123858 A123859 this_sequence A123861 A123862 A123863`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 19 2006`

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

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