A232121 Number of (n+1)X(5+1) 0..2 arrays with every element both >= and <= some horizontal or vertical neighbor

21717, 6462505, 1841606457, 539351064745, 157357630962031, 45923654534440885, 13402622472944146617, 3911492760590744026197, 1141551698701388435111293, 333156695578132081213475329, 97230275087492714949873039507

Offset

1,1

Comments

Column 5 of A232124

Links

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

Example

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

Crossrefs

Sequence in context: A247694 A309964 A235219 * A232419 A251033 A318167

Adjacent sequences: A232118 A232119 A232120 * A232122 A232123 A232124

Keyword

nonn

Author

R. H. Hardin, Nov 19 2013

Status

approved