A204257 - OEIS

A204257

Matrix given by f(i,j)=1+[(i+2j) mod 3], by antidiagonals.

1, 3, 2, 2, 1, 3, 1, 3, 2, 1, 3, 2, 1, 3, 2, 2, 1, 3, 2, 1, 3, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 2, 1, 3, 2, 1, 3, 2, 1, 3, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..99.

EXAMPLE

Northwest corner:

1 3 2 1 3 2 1 3

2 1 3 2 1 3 2 1

3 2 1 3 2 1 3 2

1 3 2 1 3 2 1 3

2 1 3 2 1 3 2 1