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A205833 Number of (n+1)X6 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two 1
6132, 122526, 2531223, 52826862, 1105752330, 23163320754, 485313697782, 10168541874792, 213057191546673, 4464093891685218, 93534131935237503, 1959777527759278002, 41062309396848183363, 860359480739604665088 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A205836

LINKS

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

FORMULA

Empirical: a(n) = 50*a(n-1) -967*a(n-2) +9966*a(n-3) -61665*a(n-4) +238876*a(n-5) -566620*a(n-6) +685346*a(n-7) +102414*a(n-8) -1329090*a(n-9) -88722*a(n-10) +6610223*a(n-11) -14921326*a(n-12) +15135867*a(n-13) -2541029*a(n-14) -13928242*a(n-15) +20602103*a(n-16) -14996664*a(n-17) +5587268*a(n-18) +151004*a(n-19) -1261871*a(n-20) +642104*a(n-21) -175642*a(n-22) +40087*a(n-23) +7838*a(n-24) -9227*a(n-25) +687*a(n-26) -82*a(n-27) -64*a(n-28) +3*a(n-29) -a(n-30)

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A114131 A144491 A184501 * A152388 A251787 A203982

Adjacent sequences:  A205830 A205831 A205832 * A205834 A205835 A205836

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 01 2012

STATUS

approved

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Last modified December 4 02:40 EST 2021. Contains 349469 sequences. (Running on oeis4.)