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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
 1040, 4824, 22472, 129728, 699984, 4332592, 24793848, 156146264, 917982376, 5792726088, 34542014432, 217536762520, 1307931723824, 8215494820520, 49649815689616, 311141881967400, 1886646705995688, 11801380127712512 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 2 of A233859 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 68 FORMULA Empirical recurrence of order 68 (see link above) EXAMPLE Some solutions for n=4 ..6..1..6....2..7..2....5..5..3....5..5..5....6..2..2....6..1..6....1..0..1 ..5..3..5....3..3..3....1..6..1....1..6..1....7..6..1....3..5..3....3..5..3 ..0..1..0....2..7..2....5..5..3....4..2..2....6..2..4....6..1..0....0..1..0 ..3..5..3....6..4..6....6..1..6....6..1..6....4..7..6....5..5..3....3..5..3 ..0..1..6....7..2..1....5..5..5....5..5..3....6..2..6....1..6..1....1..0..1 CROSSREFS Sequence in context: A020395 A069456 A210259 * A168412 A183742 A252618 Adjacent sequences:  A233851 A233852 A233853 * A233855 A233856 A233857 KEYWORD nonn AUTHOR R. H. Hardin, Dec 16 2013 STATUS approved

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Last modified October 22 19:53 EDT 2019. Contains 328319 sequences. (Running on oeis4.)