A234446 - OEIS

A234446

Number of (n+1) X (3+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant-stress 1 X 1 tilings).

8064, 125080, 2053280, 34601928, 588663528, 10079824144, 172781443608, 2969800840496, 51008286679168, 877838573526604, 15089751678627080, 259871199831030144, 4469550891727670024, 77017044139316320812

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OFFSET

1,1

LINKS

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

R. H. Hardin, Empirical recurrence of order 92

FORMULA

Empirical recurrence of order 92 (see link above).

EXAMPLE

Some solutions for n=2:

0 1 0 2 1 1 2 1 0 0 1 1 3 3 3 3 0 1 2 3

3 3 1 4 1 2 2 0 2 1 1 0 1 2 1 2 1 1 1 3