id:A099978 - OEIS Search Results

Search: id:A099978

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Bisection of A001157.

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1, 10, 26, 50, 91, 122, 170, 260, 290, 362, 500, 530, 651, 820, 842, 962, 1220, 1300, 1370, 1700, 1682, 1850, 2366, 2210, 2451, 2900, 2810, 3172, 3620, 3482, 3722, 4550, 4420, 4490, 5300, 5042, 5330, 6510, 6100, 6242, 7381, 6890, 7540, 8420, 7922, 8500 (list; graph; listen)

	OFFSET	`0,2`
	MAPLE	`with(numtheory): A099978 := n->sigma[2](2n-1): seq(sigma[2](2n-1), n=1..60);`
	CROSSREFS	`Sequence in context: A044452 A137351 A134406 this_sequence A074789 A125075 A055710` `Adjacent sequences: A099975 A099976 A099977 this_sequence A099979 A099980 A099981`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 19 2004`
	EXTENSIONS	`More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Dec 07 2004`

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

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