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A251520 Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to 2 3 4 5 6 7 8 9 or 10 1

%I #4 Dec 03 2014 18:37:50

%S 904734,811863390,727704325306,652338909221254,584773855532345166,

%T 524207148511603961602,469913480156252272754666,

%U 421243168176488059719015278,377613782427648058582852112694

%N Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to 2 3 4 5 6 7 8 9 or 10

%C Column 4 of A251524

%H R. H. Hardin, <a href="/A251520/b251520.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A251520/a251520.txt">Empirical recurrence of order 40</a>

%F Empirical recurrence of order 40 (see link above)

%e Some solutions for n=1

%e ..0..0..2..2..1....0..2..2..2..2....0..0..1..0..2....0..0..0..0..0

%e ..3..0..1..3..2....0..2..1..2..2....2..2..0..1..0....2..2..3..2..3

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 03 2014

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Last modified April 23 22:36 EDT 2024. Contains 371917 sequences. (Running on oeis4.)