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A206165 Number of (n+1)X5 0..3 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..3 introduced in row major order 1
5257, 196078, 13899222, 526154358, 37242588902, 1412613762182, 99795262195942, 3792559398258150, 267412693827257062, 10182112342596159814, 716565655722012651878, 27336312034927725448230, 1920135265326220468069670 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A206169

LINKS

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

FORMULA

Empirical: a(n) = a(n-1) +2697*a(n-2) -2261*a(n-3) -62984*a(n-4) +18588*a(n-5) +148188*a(n-6) +441756*a(n-7) -1398384*a(n-8) +632448*a(n-9) +6137856*a(n-10) for n>11

EXAMPLE

Some solutions for n=4

..0..1..0..1..2....0..0..0..0..1....0..0..0..0..1....0..1..1..0..0

..1..3..1..1..1....0..2..0..2..0....0..2..0..1..1....0..2..2..2..1

..0..3..2..2..2....3..2..3..3..1....3..2..0..2..0....1..0..2..0..2

..0..0..3..2..3....1..3..1..3..3....1..3..2..3..2....1..0..2..3..2

..3..2..1..0..1....1..3..2..0..0....0..0..0..0..2....1..1..0..2..0

CROSSREFS

Sequence in context: A093182 A124658 A256745 * A206379 A234229 A143936

Adjacent sequences:  A206162 A206163 A206164 * A206166 A206167 A206168

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 04 2012

STATUS

approved

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Last modified October 31 11:50 EDT 2020. Contains 338101 sequences. (Running on oeis4.)