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A059857 Alternating clock-face numbers. +0
1
12, 1, 11, 2, 10, 3, 9, 4, 8, 5, 7, 6, 6, 7, 5, 8, 4, 9, 3, 10, 2, 11, 1, 12, 12, 1, 11, 2, 10, 3, 9, 4, 8, 5, 7, 6, 6, 7, 5, 8, 4, 9, 3, 10, 2, 11, 1, 12, 12, 1, 11, 2, 10, 3, 9, 4, 8, 5, 7, 6, 6, 7, 5, 8, 4, 9, 3, 10, 2, 11, 1, 12, 12, 1, 11, 2, 10, 3, 9, 4, 8, 5, 7, 6, 6, 7, 5, 8, 4, 9, 3, 10, 2 (list; graph; listen)
OFFSET

0,1

COMMENT

Has period 24: a(n+24)=a(n).

FORMULA

If you start with 12 on a clock's face and move forward 1 it yields the number 1, then moving backward 2 yields 11, then moving forward 3 yields 2, moving backward 4 yields 10 and so forth.

CROSSREFS

Sequence in context: A121985 A068329 A010215 this_sequence A070649 A056583 A139724

Adjacent sequences: A059854 A059855 A059856 this_sequence A059858 A059859 A059860

KEYWORD

nonn,easy

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Feb 26 2001

EXTENSIONS

More terms from Henry Bottomley (se16(AT)btinternet.com), Feb 28 2001

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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