# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a059857 Showing 1-1 of 1 %I A059857 #9 Aug 26 2024 18:59:55 %S A059857 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, %T A059857 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, %U A059857 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 %N A059857 Alternating clock-face numbers. %C A059857 Has period 24: a(n+24)=a(n). %F A059857 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. %t A059857 PadRight[{},120,Riffle[Range[12,1,-1],Range[12]]] (* _Harvey P. Dale_, Aug 26 2024 *) %K A059857 nonn,easy %O A059857 0,1 %A A059857 _Jason Earls_, Feb 26 2001 %E A059857 More terms from _Henry Bottomley_, Feb 28 2001 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE