A145379 - OEIS

A145379

Square array read by antidiagonals upwards: T(n,k) = 1 if n divides k, T(n,k) = 0 otherwise, n >= 1, k >= 2.

1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0

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OFFSET

1,1

COMMENTS

This array is used in the proof of the Moebius function as a zero corner determinant of the Redheffer matrix. This table is the transpose of A051731 where the first row has been deleted.

LINKS

Table of n, a(n) for n=1..97.

EXAMPLE

Table begins:

1,1,1,1,1,1,1,...

1,0,1,0,1,0,1,...

0,1,0,0,1,0,0,...

0,0,1,0,0,0,1,...

0,0,0,1,0,0,0,...

0,0,0,0,1,0,0,...

0,0,0,0,0,1,0,...

...