A218240 Hilltop maps: number of n X 6 binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..3 n X 6 array.

57, 4065, 262017, 16776705, 1073678481, 68715299265, 4397778640641, 281457830657025, 18013301044272297, 1152851258815826049, 73782480049026835329, 4722078690155327132673, 302213034059098425848289

Offset

1,1

Comments

Column 6 of A218242.

Links

R. H. Hardin, Table of n, a(n) for n = 1..26

Example

Some solutions for n=3:
..0..0..1..1..0..0....0..0..0..1..1..1....0..0..1..0..1..1....0..1..0..0..0..1
..0..1..0..1..1..1....0..0..0..0..1..1....1..0..0..0..1..1....1..1..1..1..0..0
..1..1..1..0..1..1....1..0..0..0..0..0....0..0..0..0..0..1....0..0..0..0..0..0

Crossrefs

Sequence in context: A218194 A218370 A218636 * A281567 A012165 A209512

Adjacent sequences: A218237 A218238 A218239 * A218241 A218242 A218243

Keyword

nonn

Author

R. H. Hardin, Oct 24 2012

Status

approved