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A233854 Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 59 1

%I #5 Aug 11 2014 22:45:56

%S 1040,4824,22472,129728,699984,4332592,24793848,156146264,917982376,

%T 5792726088,34542014432,217536762520,1307931723824,8215494820520,

%U 49649815689616,311141881967400,1886646705995688,11801380127712512

%N Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 59

%C Column 2 of A233859

%H R. H. Hardin, <a href="/A233854/b233854.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A233854/a233854.txt">Empirical recurrence of order 68</a>

%F Empirical recurrence of order 68 (see link above)

%e Some solutions for n=4

%e ..6..1..6....2..7..2....5..5..3....5..5..5....6..2..2....6..1..6....1..0..1

%e ..5..3..5....3..3..3....1..6..1....1..6..1....7..6..1....3..5..3....3..5..3

%e ..0..1..0....2..7..2....5..5..3....4..2..2....6..2..4....6..1..0....0..1..0

%e ..3..5..3....6..4..6....6..1..6....6..1..6....4..7..6....5..5..3....3..5..3

%e ..0..1..6....7..2..1....5..5..5....5..5..3....6..2..6....1..6..1....1..0..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 16 2013

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)