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Square array of Delannoy numbers D(i,j) mod 11 (i >= 0, j >= 0) read by antidiagonals.
4

%I #12 Dec 29 2014 03:25:27

%S 1,1,1,1,3,1,1,5,5,1,1,7,2,7,1,1,9,3,3,9,1,1,0,8,8,8,0,1,1,2,6,8,8,6,

%T 2,1,1,4,8,0,2,0,8,4,1,1,6,3,3,10,10,3,3,6,1,1,8,2,3,2,0,2,3,2,8,1,1,

%U 10,5,8,8,1,1,8,8,5,10,1,1,1,1,4,8,0,2,0,8,4,1,1,1

%N Square array of Delannoy numbers D(i,j) mod 11 (i >= 0, j >= 0) read by antidiagonals.

%H Marko Razpet, <a href="http://dx.doi.org/10.1016/S0012-365X(01)00098-X">A self-similarity structure generated by king's walk</a>, Algebraic and topological methods in graph theory (Lake Bled, 1999). Discrete Math. 244 (2002), no. 1-3, 423--433. MR1844050 (2002k:05022).

%e Written as a triangle:

%e 1,

%e 1, 1,

%e 1, 3, 1,

%e 1, 5, 5, 1,

%e 1, 7, 2, 7, 1,

%e 1, 9, 3, 3, 9, 1,

%e 1, 0, 8, 8, 8, 0, 1,

%e 1, 2, 6, 8, 8, 6, 2, 1,

%e 1, 4, 8, 0, 2, 0, 8, 4, 1,

%e ...

%Y Cf. A008288, A211312, A211313, A211314.

%K nonn,tabl

%O 0,5

%A _N. J. A. Sloane_, Apr 15 2012