id:A081031 - OEIS Search Results

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Positions of white keys on piano keyboard.

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1, 3, 4, 6, 8, 9, 11, 13, 15, 16, 18, 20, 21, 23, 25, 27, 28, 30, 32, 33, 35, 37, 39, 40, 42, 44, 45, 47, 49, 51, 52, 54, 56, 57, 59, 61, 63, 64, 66, 68, 69, 71, 73, 75, 76, 78, 80, 81, 83, 85, 87, 88 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n) = [(12n-3)/7]`
	EXAMPLE	`First, 3rd, 4th, 6th, etc. keys of piano keyboard are white.`
	CROSSREFS	`Cf. A059620, A081032.` `Sequence in context: A059535 A061402 A047206 this_sequence A133280 A138097 A000592` `Adjacent sequences: A081028 A081029 A081030 this_sequence A081032 A081033 A081034`
	KEYWORD	`fini,full,nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net), Mar 02 2003`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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