A122132 - OEIS

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A122132

Squarefree numbers multiplied by binary powers.

1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 26, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 51, 52, 53, 55, 56, 57, 58, 59, 60, 61, 62, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 76, 77, 78, 79, 80, 82, 83, 84, 85 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`a(n) = A007947(a(n)) * A006519(a(n)) / (2 - a(n) mod 2);` `A007947(a(n)) = A000265(a(n)) * (2 - a(n) mod 2).`
	LINKS	`Reinhard Zumkeller, Table of n, a(n) for n = 1..10000`
	FORMULA	`A008966(A000265(a(n))) = 1. [Reinhard Zumkeller, Jan 24 2012]`
	PROG	`(Haskell)` `a122132 n = a122132_list !! (n-1)` `a122132_list = filter ((== 1) . a008966 . a000265) [1..]` `-- Reinhard Zumkeller, Jan 24 2012`
	CROSSREFS	`Subsequences: A000079, A005117, A007283, A051916, A056911, A029747.` `Sequence in context: A168183 A043094 A023803 * A020662 A107037 A032897` `Adjacent sequences: A122129 A122130 A122131 * A122133 A122134 A122135`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 21 2006`

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Last modified February 14 21:50 EST 2012. Contains 205663 sequences.