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Search: id:A060107
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| A060107 |
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Numbers that are congruent to {0, 2, 3, 5, 7, 8, 10} mod 12. The ivory keys on a piano. |
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+0
5
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| 0, 2, 3, 5, 7, 8, 10, 12, 14, 15, 17, 19, 20, 22, 24, 26, 27, 29, 31, 32, 34, 36, 38, 39, 41, 43, 44, 46, 48, 50, 51, 53, 55, 56, 58, 60, 62, 63, 65, 67, 68, 70, 72, 74, 75, 77, 79, 80, 82, 84, 86, 87, 89, 91, 92, 94, 96, 98, 99, 101, 103, 104, 106, 108, 110, 111, 113, 115
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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More precisely, the key-numbers of the pitches of a minor scale on a standard chromatic keyboard, with root = 0 and flat seventh.
Also key-numbers of the pitches of an Aeolian mode scale on a standard chromatic keyboard, with root = 0. An Aeolian mode scale can, for example, be played on consecutive white keys of a standard keyboad, starting on the root tone A.
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FORMULA
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a(n)=a(n-7)+12
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CROSSREFS
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Complement of A060106. A piano sequence since if a(n)<88 then A059620(a(n))=0.
Sequence in context: A143826 A001912 A083027 this_sequence A159556 A028728 A028743
Adjacent sequences: A060104 A060105 A060106 this_sequence A060108 A060109 A060110
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KEYWORD
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easy,nonn
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AUTHOR
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Henry Bottomley (se16(AT)btinternet.com), Feb 27 2001
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