A081998 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A081998

Square array read by antidiagonals, alternating upwards and downwards: T(i, j) is the least number that is greater than the previous term and coprime to every number on the same row or column.

1, 2, 3, 4, 5, 7, 9, 11, 13, 17, 19, 21, 23, 26, 29, 31, 37, 41, 43, 47, 49, 53, 59, 60, 61, 63, 67, 71, 73, 79, 83, 88, 89, 97, 101, 103, 107, 109, 113, 115, 127, 131, 137, 139, 143, 149, 151, 155, 157, 161, 163, 167, 169, 173, 179, 181, 187, 191, 193, 197, 198, 199

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

0,2

COMMENTS

Is the sequence related to A067126? This should exhibit some number-theoretic properties.

LINKS

Charlie Neder, Table of n, a(n) for n = 0..10010

EXAMPLE

Array begins:

1, 2, 7, 9, ...

3, 5, 11, ...

4, 13, ...