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A260541 Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001 1
582, 976, 2226, 4398, 9184, 21050, 40916, 87410, 201208, 402848, 821864, 1875468, 3915914, 7859688, 17346634, 37355368, 75700214, 161905666, 352069138, 727251892, 1527430530, 3306328274, 6942964498, 14500464116, 31097174670 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A260544

LINKS

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

FORMULA

Empirical: a(n) = 10*a(n-3) +15*a(n-4) +a(n-5) -31*a(n-6) -97*a(n-7) -101*a(n-8) +45*a(n-9) +215*a(n-10) +438*a(n-11) +371*a(n-12) -224*a(n-13) -899*a(n-14) -1291*a(n-15) -974*a(n-16) +744*a(n-17) +2755*a(n-18) +3017*a(n-19) +1910*a(n-20) -3252*a(n-21) -5726*a(n-22) -6017*a(n-23) -1511*a(n-24) +7287*a(n-25) +9229*a(n-26) +9360*a(n-27) +522*a(n-28) -6813*a(n-29) -8389*a(n-30) -11476*a(n-31) -2691*a(n-32) +5711*a(n-33) +534*a(n-34) +12628*a(n-35) +440*a(n-36) -1143*a(n-37) +1372*a(n-38) -7359*a(n-39) +2358*a(n-40) -3274*a(n-41) +1777*a(n-42) +442*a(n-43) -467*a(n-44) +1568*a(n-45) -1166*a(n-46) +811*a(n-47) -313*a(n-48) -155*a(n-49) +271*a(n-50) -374*a(n-51) +246*a(n-52) -123*a(n-53) +53*a(n-54) +12*a(n-55) -22*a(n-56) +14*a(n-57) -8*a(n-58) +2*a(n-59) for n>63

EXAMPLE

Some solutions for n=4

..0..0..0..0..0..1..1....1..0..0..0..0..0..0....0..0..1..1..0..0..1

..0..0..1..0..0..1..0....0..1..0..0..0..0..0....0..0..0..0..0..0..1

..0..0..1..0..0..0..0....0..0..0..0..1..0..0....0..0..0..0..0..0..0

..0..0..0..0..0..0..0....0..0..0..0..1..0..0....1..0..0..1..1..0..0

..0..0..0..0..0..1..1....1..1..0..0..0..0..0....1..0..0..0..0..0..0

..0..0..1..0..0..0..0....1..0..0..0..0..0..0....0..0..0..0..0..0..1

CROSSREFS

Cf. A260544

Sequence in context: A172763 A172835 A172883 * A162705 A244344 A059468

Adjacent sequences:  A260538 A260539 A260540 * A260542 A260543 A260544

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 28 2015

STATUS

approved

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Last modified May 27 11:44 EDT 2022. Contains 354097 sequences. (Running on oeis4.)