A220252 Sum of neighbor maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their king-move neighbors in a random 0..2 nX4 array

16, 256, 4096, 45792, 1048576, 16777216, 268435456, 4294967296, 68476059648, 1099511627776, 17592186044416, 281474976710656, 4503599627370496, 72056280260730880, 1152921504606846976, 18446744073709551616

Offset

1,1

Comments

Column 4 of A220254

Links

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

Example

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

Crossrefs

Sequence in context: A136577 A190134 A267792 * A267976 A220803 A229101

Adjacent sequences: A220249 A220250 A220251 * A220253 A220254 A220255

Keyword

nonn

Author

R. H. Hardin Dec 08 2012

Status

approved