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A234147 Number of (n+1) X (2+1) 0..5 arrays with every 2 X 2 subblock having the sum of the absolute values of the edge differences equal to 10 and no adjacent elements equal. 1
1264, 13936, 158812, 1920340, 23565328, 292681764, 3649331396, 45615539600, 570694277160, 7143825942232, 89442049322768, 1119974200114072, 14024590625718520, 175625103897490080, 2199303275432206652 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A234152.

LINKS

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

FORMULA

Empirical: a(n) = 10*a(n-1) +188*a(n-2) -1705*a(n-3) -13231*a(n-4) +115068*a(n-5) +493976*a(n-6) -4229448*a(n-7) -11190946*a(n-8) +96334439*a(n-9) +164224925*a(n-10) -1453766839*a(n-11) -1614673985*a(n-12) +15099553644*a(n-13) +10806854528*a(n-14) -110319519409*a(n-15) -49482794946*a(n-16) +573293794815*a(n-17) +155510560962*a(n-18) -2125916423322*a(n-19) -344648421788*a(n-20) +5607869207405*a(n-21) +602950452380*a(n-22) -10426809489560*a(n-23) -1017179390188*a(n-24) +13440589196562*a(n-25) +1660271297890*a(n-26) -11680287015490*a(n-27) -2067440715994*a(n-28) +6524300789888*a(n-29) +1631686761052*a(n-30) -2149016060048*a(n-31) -727542691768*a(n-32) +347865584016*a(n-33) +160185863728*a(n-34) -13689852000*a(n-35) -13226096640*a(n-36) -1457602560*a(n-37)

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Cf. A234152.

Sequence in context: A234676 A237327 A233887 * A252562 A038652 A204720

Adjacent sequences:  A234144 A234145 A234146 * A234148 A234149 A234150

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 2013

STATUS

approved

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Last modified November 29 15:46 EST 2021. Contains 349416 sequences. (Running on oeis4.)