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A260472 Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010101 1
414, 1085, 4607, 15502, 57524, 228287, 839073, 3095233, 11809031, 44303443, 164909771, 620730229, 2333261427, 8731252217, 32758466355, 123014796659, 461213884299, 1729719499043, 6490923837905, 24348087968989, 91323390042221 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A260475

LINKS

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

FORMULA

Empirical: a(n) = a(n-1) +2*a(n-2) +33*a(n-3) +20*a(n-4) -18*a(n-5) -257*a(n-6) -260*a(n-7) -42*a(n-8) +912*a(n-9) +794*a(n-10) +181*a(n-11) -1126*a(n-12) -774*a(n-13) +140*a(n-14) +1295*a(n-15) +182*a(n-16) -2115*a(n-17) -2863*a(n-18) -1164*a(n-19) +2571*a(n-20) +3736*a(n-21) +1547*a(n-22) -1848*a(n-23) -2648*a(n-24) +734*a(n-25) +4007*a(n-26) +4392*a(n-27) -255*a(n-28) -4650*a(n-29) -4693*a(n-30) -1324*a(n-31) +1748*a(n-32) +1791*a(n-33) +136*a(n-34) -632*a(n-35) -677*a(n-36) +143*a(n-37) +278*a(n-38) +264*a(n-39) +10*a(n-40) -12*a(n-41) -24*a(n-42) for n>47

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

CROSSREFS

Cf. A260475

Sequence in context: A205585 A176381 A027661 * A253489 A253496 A253450

Adjacent sequences:  A260469 A260470 A260471 * A260473 A260474 A260475

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 26 2015

STATUS

approved

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Last modified October 16 06:19 EDT 2019. Contains 328048 sequences. (Running on oeis4.)