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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 1
16, 256, 4096, 45792, 1048576, 16777216, 268435456, 4294967296, 68476059648, 1099511627776, 17592186044416, 281474976710656, 4503599627370496, 72056280260730880, 1152921504606846976, 18446744073709551616 (list; graph; refs; listen; history; text; internal format)
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

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Last modified August 7 20:58 EDT 2022. Contains 355994 sequences. (Running on oeis4.)