A251324 Number of (n+1) X (6+1) 0..1 arrays with every 2 X 2 subblock having one or two 1's.

1740, 34288, 636404, 12770802, 246926340, 4911447738, 96040080726, 1900083059348, 37310824370952, 736337217038262, 14484078395069690, 285531655916253834, 5620706345762154584, 110750007369029752518

Offset

1,1

Comments

Column 6 of A251326.

Links

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

R. H. Hardin, Empirical recurrence of order 71

Formula

Empirical recurrence of order 71 (see link above).

Example

Some solutions for n=2
..1..0..1..0..1..0..1....1..0..0..0..1..0..1....0..1..0..0..0..0..0
..1..0..1..0..1..0..0....0..0..1..0..0..1..0....0..1..0..1..1..1..1
..1..0..0..0..0..1..1....1..1..0..1..1..0..0....0..1..0..0..0..0..0

Crossrefs

Cf. A251326.

Sequence in context: A194775 A259302 A251802 * A184666 A022061 A107525

Adjacent sequences: A251321 A251322 A251323 * A251325 A251326 A251327

Keyword

nonn

Author

R. H. Hardin, Dec 01 2014

Status

approved