id:A104124 - OEIS Search Results

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a(n) = number of ways n = (2m-1)^2 *k, m >= k, k and m = positive integers.

+0
1

1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Sum{n=1 to infinity} a(n)/n = zeta(3)7/4 + (1 - ln(2))pi^2/4 - ln(4)` `The first entries >1 are a(2601)=a(3249)=a(3969)=a(4761)=a(5625)=2. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 14 2008` `The first entries >2 are a(65025)=a(81225)=a(99225)=3. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 14 2008`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	EXAMPLE	`1 = (21-1)^21` `9 = (22-1)^21` `18 = (22-1)^22` `25 = (23-1)^21` `49 = (24-1)^21` `50 = (23-1)^22` `75 = (23-1)^23` `81 = (25-1)^21` `98 = (24-1)^22` `121 = (26-1)^21` `147 = (24-1)^23` `162 = (25-1)^22` `169 = (27-1)^21` `196 = (24-1)^24` `225 = (28-1)^21`
	CROSSREFS	`Sequence in context: A126811 A014057 A015689 this_sequence A052434 A015241 A014025` `Adjacent sequences: A104121 A104122 A104123 this_sequence A104125 A104126 A104127`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet, Mar 06 2005`
	EXTENSIONS	`More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 14 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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