id:A058735 - OEIS Search Results

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Triangle of coefficients in expansion of enumerators for series-reduced rooted trees by lines at the root.

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1, 1, 1, 1, 1, 3, 1, 1, 3, 7, 1, 1, 3, 8, 20, 1, 1, 3, 8, 22, 55, 1, 1, 3, 8, 23, 63, 162, 1, 1, 3, 8, 23, 65, 188, 477, 1, 1, 3, 8, 23, 66, 196, 564, 1450, 1, 1, 3, 8, 23, 66, 198, 590, 1732, 4446, 1, 1, 3, 8, 23, 66, 199, 598, 1824, 5384, 13858, 1, 1, 3, 8, 23, 66, 199, 600, 1850 (list; table; graph; listen)

	OFFSET	`0,6`
	REFERENCES	`J. Riordan, The blossoming of Schroeder's fourth problem, Acta Math., 137 (1976), 1-16.`
	LINKS	`Index entries for sequences related to rooted trees`
	EXAMPLE	`1; 1,1; 1,1,3; 1,1,3,7; ...`
	CROSSREFS	`Main diagonal is A058737.` `Sequence in context: A121745 A089312 A125127 this_sequence A107294 A161788 A140211` `Adjacent sequences: A058732 A058733 A058734 this_sequence A058736 A058737 A058738`
	KEYWORD	`nonn,tabl`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Jan 01 2001`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), May 07 2005`

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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.

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