id:A046752 - OEIS Search Results

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Triangle of number of homeomorphically irreducible stars with n edges and m nodes.

+0
2

1, 1, 1, 1, 1, 2, 2, 1, 3, 5, 1, 4, 13, 4, 1, 6, 26, 24, 5, 1, 7, 47, 84, 38, 1, 9, 78, 233, 216, 23, 1, 11, 126, 557, 914, 314, 16 (list; graph; listen)

	OFFSET	`0,6`
	REFERENCES	`B. R. Heap, The enumeration of homeomorphically irreducible star graphs, J. Math. Phys., 7 (1966), 1582-1587.`
	EXAMPLE	`1; 1; 1 1; 1 2 2; 1 3 5;...`
	CROSSREFS	`Cf. A002935.` `Sequence in context: A065185 A111375 A165997 this_sequence A086350 A140767 A060850` `Adjacent sequences: A046749 A046750 A046751 this_sequence A046753 A046754 A046755`
	KEYWORD	`nonn,nice,tabf,more`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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