cp's OEIS Frontend

A082390 Numbers on a computer numpad, read in a clockwise spiral.

%I A082390 #19 Nov 17 2023 01:34:45
%S A082390 0,1,4,7,8,9,6,3,2,5
%N A082390 Numbers on a computer numpad, read in a clockwise spiral.
%C A082390 If read counterclockwise we would get 0, 3, 6, 9, 8, 7, 4, 1, 2, 5. - _Robert G. Wilson v_, Jun 23 2014
%e A082390 From _Wesley Ivan Hurt_, Jun 23 2014: (Start)
%e A082390 A basic numpad:
%e A082390    ___   ___   ___
%e A082390   |7  | |8  | |9  |
%e A082390   |___| |___| |___|
%e A082390    ___   ___   ___
%e A082390   |4  | |5  | |6  |
%e A082390   |___| |___| |___|
%e A082390    ___   ___   ___
%e A082390   |1  | |2  | |3  |
%e A082390   |___| |___| |___|
%e A082390    ___   ___   ___
%e A082390   |0  | |00 | |.  |
%e A082390   |___| |___| |___|
%e A082390 (End)
%K A082390 dumb,easy,fini,full,nonn
%O A082390 1,3
%A A082390 Arne Viste (arne.viste(AT)lyse.no), Apr 14 2003
%E A082390 Offset corrected by _Arkadiusz Wesolowski_, Jun 05 2011