id:A157020 - OEIS Search Results

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Sum_{d|n} d*binomial(n/d+d-2,d-1).

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1, 3, 4, 9, 6, 22, 8, 33, 28, 46, 12, 131, 14, 78, 136, 177, 18, 307, 20, 456, 302, 166, 24, 1149, 376, 222, 568, 1177, 30, 2387, 32, 1761, 958, 358, 2556, 5224, 38, 438, 1496, 7851, 42, 8317, 44, 4863, 9136, 622, 48, 20169, 6518, 11451, 3112, 8516, 54, 23734 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Equals row sums of triangle A157497 [From Gary W. Adamson & Mats Granvik (qntmpkt(AT)yahoo.com), Mar 01 2009]`
	MAPLE	`add( d*binomial(n/d+d-2, d-1), d=numtheory[divisors](n) ) ;`
	CROSSREFS	`Cf. A081543, A132065.` `A157497 [From Gary W. Adamson & Mats Granvik (qntmpkt(AT)yahoo.com), Mar 01 2009]` `Sequence in context: A003959 A083111 A132065 this_sequence A055225 A054791 A167531` `Adjacent sequences: A157017 A157018 A157019 this_sequence A157021 A157022 A157023`
	KEYWORD	`easy,nonn`
	AUTHOR	`R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 21 2009`

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

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