A203979 - OEIS

A203979

Number of (n+1)X4 0..2 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..2 introduced in row major order

96, 864, 7776, 69984, 629856, 5668704, 51018336, 459165024, 4132485216, 37192366944, 334731302496, 3012581722464, 27113235502176, 244019119519584, 2196172075676256, 19765548681086304, 177889938129776736

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OFFSET

1,1

COMMENTS

Column 3 of A203984

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

FORMULA

Empirical: a(n) = 96*9^(n-1)

EXAMPLE

Some solutions for n=4

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