A218316 Hilltop maps: number of nX5 binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..2 nX5 array

25, 993, 32641, 1040977, 33296833, 1065434881, 34092332617, 1090897313921, 34906847699841, 1116959510237537, 35740797133371201, 1143644481745733633, 36594670664121360825, 1170966976498174909921, 37468943842624386026753

Offset

1,1

Comments

Column 5 of A218319

Links

R. H. Hardin, Table of n, a(n) for n = 1..112

Formula

Empirical: a(n) = 28*a(n-1) +112*a(n-2) +445*a(n-3) +1828*a(n-4) +8080*a(n-5) -402*a(n-6) -1452*a(n-7) -1206*a(n-9) -7956*a(n-10) +675*a(n-12) +2025*a(n-15)

Example

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

Crossrefs

Sequence in context: A290814 A218230 A219060 * A232698 A139163 A367974

Adjacent sequences: A218313 A218314 A218315 * A218317 A218318 A218319

Keyword

nonn

Author

R. H. Hardin Oct 25 2012

Status

approved