A265934 Number of 6Xn 0..4 arrays with the absolute differences of each element with its with horizontal and antidiagonal neighbors unique.

15625, 11564952, 15962560, 30029860, 51986544, 112139348, 238485164, 634895796, 1889252212, 4519155408, 11448798252, 29549746684, 97486966836, 225990797164, 613757430276, 1612664169808, 5648130657700, 12916631080252, 36051751403804

Offset

1,1

Comments

Row 6 of A265928.

Links

R. H. Hardin, Table of n, a(n) for n = 1..69

Example

Some solutions for n=1
..3....4....2....1....4....0....1....0....2....1....1....0....0....3....4....2
..3....2....2....0....0....1....0....2....2....2....2....4....0....1....0....0
..3....4....4....2....4....4....2....2....2....3....4....3....1....2....4....1
..4....4....1....4....3....1....0....2....2....0....2....0....3....4....2....2
..3....3....1....4....2....1....2....3....2....1....3....2....0....3....4....4
..3....3....1....1....1....3....1....2....1....4....4....0....3....3....2....4

Crossrefs

Cf. A265928.

Sequence in context: A017226 A223232 A017334 * A017454 A223262 A017586

Adjacent sequences: A265931 A265932 A265933 * A265935 A265936 A265937

Keyword

nonn

Author

R. H. Hardin, Dec 18 2015

Status

approved