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Number of nX3 0..6 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 7, and upper left element zero
(history; published version)

#5 by Russ Cox at Mon Aug 11 22:45:54 EDT 2014

LINKS

R. H. Hardin, <a href="/A230530/a230530.txt">Empirical recurrence of order 64</a>

Discussion

Mon Aug 11

22:45

OEIS Server: https://oeis.org/edit/global/2322

#4 by R. H. Hardin at Tue Oct 22 14:13:45 EDT 2013

STATUS

editing

approved

#3 by R. H. Hardin at Tue Oct 22 14:13:41 EDT 2013

LINKS

R. H. Hardin, <a href="/A230530/a230530.txt">Empirical recurrence of order 64</a>

R. H. Hardin, <a href="/A230530/b230530.txt">Table of n, a(n) for n = 1..210</a>

#2 by R. H. Hardin at Tue Oct 22 14:12:57 EDT 2013

NAME

allocated for R. H. Hardin

Number of nX3 0..6 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 7, and upper left element zero

DATA

0, 0, 0, 0, 52, 1738, 18106, 197916, 2076832, 21111192, 210584430, 2084545432, 20498628052, 200742823012, 1960821313548, 19120799484034, 186245617331536, 1812799632396874, 17636246250640738, 171524349058534882

OFFSET

1,5

COMMENTS

Column 3 of A230533

FORMULA

Empirical recurrence of order 64 (see link above)

EXAMPLE

Some solutions for n=7

..0..1..2....0..1..0....0..6..5....0..6..5....0..6..5....0..6..3....0..3..4

..6..4..3....1..2..3....1..2..4....1..1..4....1..0..6....1..5..4....1..2..5

..5..5..6....0..5..4....0..3..2....2..2..3....2..4..5....2..1..3....0..1..6

..4..1..0....6..6..5....6..4..5....3..1..2....3..2..4....3..0..2....6..0..0

..3..2..6....5..0..6....5..5..6....4..3..1....4..5..3....4..5..1....5..6..1

..1..4..5....4..1..5....4..3..0....5..6..0....3..6..2....3..6..0....2..5..2

..2..3..4....3..2..1....1..2..1....4..5..6....2..0..1....4..5..4....3..4..3

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, Oct 22 2013

STATUS

approved

editing

#1 by R. H. Hardin at Tue Oct 22 14:11:08 EDT 2013

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved