A211314 Square array of Delannoy numbers D(i,j) mod 7 (i >= 0, j >= 0) read by antidiagonals.

1, 1, 1, 1, 3, 1, 1, 5, 5, 1, 1, 0, 6, 0, 1, 1, 2, 4, 4, 2, 1, 1, 4, 6, 0, 6, 4, 1, 1, 6, 5, 3, 3, 5, 6, 1, 1, 1, 1, 0, 6, 0, 1, 1, 1, 1, 3, 1, 6, 2, 2, 6, 1, 3, 1, 1, 5, 5, 1, 1, 3, 1, 1, 5, 5, 1, 1, 0, 6, 0, 1, 6, 6, 1, 0, 6, 0, 1, 1, 2, 4, 4, 2, 1, 1, 1, 2, 4, 4, 2, 1

Offset

0,5

Links

Table of n, a(n) for n=0..90.

Marko Razpet, A self-similarity structure generated by king's walk, Algebraic and topological methods in graph theory (Lake Bled, 1999). Discrete Math. 244 (2002), no. 1-3, 423--433. MR1844050 (2002k:05022).

Example

Written as a triangle:
1,
1, 1,
1, 3, 1,
1, 5, 5, 1,
1, 0, 6, 0, 1,
1, 2, 4, 4, 2, 1,
1, 4, 6, 0, 6, 4, 1,
1, 6, 5, 3, 3, 5, 6, 1,
1, 1, 1, 0, 6, 0, 1, 1, 1,
...

Crossrefs

Cf. A008288, A211312, A211313, A211315.

Sequence in context: A275421 A384226 A243576 * A026703 A122917 A211315

Adjacent sequences: A211311 A211312 A211313 * A211315 A211316 A211317

Keyword

nonn,tabl,changed

Author

N. J. A. Sloane, Apr 15 2012

Status

approved