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URL: https://oeis.org/history?seq=A209375

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1/4 the number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having distinct edge sums.
#10 by Sean A. Irvine at Fri Oct 03 15:13:53 EDT 2025
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#9 by Sean A. Irvine at Fri Oct 03 15:13:51 EDT 2025
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#8 by Sean A. Irvine at Tue Jul 22 21:42:59 EDT 2025
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#7 by Sean A. Irvine at Tue Jul 22 21:42:57 EDT 2025
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#6 by Russ Cox at Sat Mar 31 12:37:28 EDT 2012
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Discussion
Sat Mar 31
12:37
OEIS Server: https://oeis.org/edit/global/875
#5 by Ron Hardin at Wed Mar 07 05:28:27 EST 2012
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#4 by Ron Hardin at Wed Mar 07 05:28:23 EST 2012
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#3 by Ron Hardin at Wed Mar 07 05:28:03 EST 2012
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#2 by Ron Hardin at Wed Mar 07 05:22:08 EST 2012
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#1 by Ron Hardin at Wed Mar 07 05:22:08 EST 2012
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