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A059857 Alternating clock-face numbers. 0
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; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

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

LINKS

Table of n, a(n) for n=0..92.

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: A068329 A334074 A010215 * A322762 A070649 A255864

Adjacent sequences:  A059854 A059855 A059856 * A059858 A059859 A059860

KEYWORD

nonn,easy

AUTHOR

Jason Earls, Feb 26 2001

EXTENSIONS

More terms from Henry Bottomley, Feb 28 2001

STATUS

approved

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Last modified July 7 14:34 EDT 2020. Contains 335495 sequences. (Running on oeis4.)