A208472 - OEIS

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A208472

Number of 7Xn nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors

877, 190899322, 470798015742024, 6105599904286957450405, 279322601688949336349340289673, 35487456577214016192433880229514302813, 10658767342117292737413813034097966371526603430

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

OFFSET

1,1

COMMENTS

Row 7 of A208466

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=4

..0..0..0..1....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..1..0..0....0..1..2..0....0..1..0..0....0..1..0..0....0..1..0..0

..0..0..1..0....0..0..0..0....0..0..1..0....0..0..1..0....0..0..1..0