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A258543 Number of (n+2)X(6+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum 1
77284, 241081, 381924, 996004, 1784896, 4359744, 8773444, 21372129, 47499664, 118113424, 282307204, 717007729, 1791151684, 4613533929, 11803953316, 30651955929, 79385316516, 207027730009, 539328672100, 1409439091204 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A258545

LINKS

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

FORMULA

Empirical: a(n) = 7*a(n-1) -9*a(n-2) -47*a(n-3) +153*a(n-4) -3*a(n-5) -629*a(n-6) +803*a(n-7) +883*a(n-8) -2747*a(n-9) +429*a(n-10) +4337*a(n-11) -2509*a(n-12) -5093*a(n-13) +3563*a(n-14) +7901*a(n-15) -6747*a(n-16) -11015*a(n-17) +13439*a(n-18) +9079*a(n-19) -16793*a(n-20) -6255*a(n-21) +16569*a(n-22) +6893*a(n-23) -19123*a(n-24) -4763*a(n-25) +20341*a(n-26) -477*a(n-27) -15813*a(n-28) +2087*a(n-29) +11281*a(n-30) -1447*a(n-31) -8951*a(n-32) +2143*a(n-33) +5847*a(n-34) -2461*a(n-35) -2623*a(n-36) +1465*a(n-37) +1001*a(n-38) -529*a(n-39) -441*a(n-40) +163*a(n-41) +165*a(n-42) -51*a(n-43) -35*a(n-44) +11*a(n-45) +3*a(n-46) -a(n-47) for n>49

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Cf. A258545

Sequence in context: A254164 A254453 A234418 * A124489 A215662 A183694

Adjacent sequences:  A258540 A258541 A258542 * A258544 A258545 A258546

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 02 2015

STATUS

approved

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Last modified January 26 07:23 EST 2022. Contains 350573 sequences. (Running on oeis4.)