id:A098545 - OEIS Search Results

Search: id:A098545

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Row sums of A098546, which has A000041(n) entries per row.

+0
3

1, 3, 7, 21, 51, 148, 365, 983, 2461, 6360, 15687, 39757, 97033, 240425, 582622, 1421273, 3409861, 8222920, 19565707, 46680362, 110309476, 260876036, 612293443, 1437616751, 3354111156, 7823501148, 18157700800, 42112132458 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`By using multisets (cf. A001700) and multinomials (cf. A005651); A035206 and A036038 were used to generate A049009 (Words over signatures). A098346 and A049019 provide another approach to the same end (compare A090657).`
	FORMULA	`a(n) = Sum_{k=1..n} binomial(n, k)*A008284(n, k). - Vladeta Jovovic (vladeta(AT)eunet.rs), Jul 24 2005`
	EXAMPLE	`A098546 begins` `1` `1 2` `1 3 3` `1 4 6 6 4` `so a(n) begins 1 3 7 21 ...`
	CROSSREFS	`Cf. A000041, A000312.` `Sequence in context: A050614 A036569 A018303 this_sequence A161707 A151267 A091489` `Adjacent sequences: A098542 A098543 A098544 this_sequence A098546 A098547 A098548`
	KEYWORD	`easy,nonn`
	AUTHOR	`Alford Arnold (Alford1940(AT)aol.com), Sep 14 2004`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Jul 24 2005`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

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