id:A133910 - OEIS Search Results

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Period numbers of A133900 divided by n^2.

+0
56

1, 1, 1, 1, 1, 2, 1, 1, 1, 4, 1, 6, 1, 4, 3, 1, 1, 8, 1, 4, 3, 8, 1, 6, 1, 8, 1, 4, 1, 360, 1, 1, 9, 16, 5, 24, 1, 16, 9, 20, 1, 144, 1, 8, 15, 16, 1, 18, 1, 16, 9, 8, 1, 16, 5, 28, 9, 16, 1, 360, 1, 16, 21, 1, 5, 288, 1, 16, 9, 1120, 1, 24, 1, 32, 9, 16, 7, 288, 1, 20, 1, 64, 1, 6048, 5, 32, 27, 8 (list; graph; listen)

	OFFSET	`1,6`
	FORMULA	`a(n)=A133900(n)/n^2.` `a(n)=1, iff n is a prime or a power of a prime (including n=1).` `If a prime p is a factor of a(n), then p is also a factor of n.`
	EXAMPLE	`a(6)=2, since A133900(6)/6^2=72/36=2.` `a(18)=8, since A133900(18)/18^2=2592/324=8.`
	CROSSREFS	`Cf. A000040, A100118, A046363, A133620, A133621, A133623, A133630, A133635.` `Cf. A133872, A133880, A133890, A133900, A133911.` `Sequence in context: A118106 A143201 A112331 this_sequence A066441 A104404 A131505` `Adjacent sequences: A133907 A133908 A133909 this_sequence A133911 A133912 A133913`
	KEYWORD	`nonn`
	AUTHOR	`Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), Oct 20 2007`

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Last modified December 4 21:35 EST 2008. Contains 151309 sequences.

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