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A200157 Number of 0..n arrays x(0..5) of 6 elements with zero 5th difference 1
8, 39, 112, 275, 730, 1589, 3000, 5181, 8350, 13871, 21588, 32019, 45682, 63225, 88580, 120521, 159996, 208123, 266020, 342493, 433532, 540855, 666180, 811455, 992870, 1201725, 1440468, 1711817, 2018490, 2387707, 2803024, 3268059, 3786430 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A200154

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

FORMULA

Empirical: a(n) = 2*a(n-1) -a(n-2) +2*a(n-5) -4*a(n-6) +2*a(n-7) +a(n-10) -2*a(n-11) +a(n-12) -4*a(n-15) +8*a(n-16) -4*a(n-17) +a(n-20) -2*a(n-21) +a(n-22) +2*a(n-25) -4*a(n-26) +2*a(n-27) -a(n-30) +2*a(n-31) -a(n-32)

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Sequence in context: A209368 A190097 A245135 * A101374 A163687 A060446

Adjacent sequences:  A200154 A200155 A200156 * A200158 A200159 A200160

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 13 2011

STATUS

approved

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Last modified June 13 11:39 EDT 2021. Contains 344992 sequences. (Running on oeis4.)