A235732 Number of (n+1)X(4+1) 0..1 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise

746, 15963, 337412, 7041734, 146785037, 3054397001, 63554803821, 1322113787590, 27503978998503, 572147678579818, 11902082913813364, 247591529985854808, 5150496436912541860, 107142578702763898163, 2228821011220833912388

Offset

1,1

Comments

Column 4 of A235736

Links

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

R. H. Hardin, Empirical recurrence of order 86

Formula

Empirical recurrence of order 86 (see link above)

Example

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

Crossrefs

Sequence in context: A099819 A344014 A051978 * A235513 A252560 A252453

Adjacent sequences: A235729 A235730 A235731 * A235733 A235734 A235735

Keyword

nonn

Author

R. H. Hardin, Jan 15 2014

Status

approved