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⇱ The On-Line Encyclopedia of Integer Sequences (OEIS)

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Irregular triangle read by rows: T(n, k) is the k-th antidiagonal sum of the n X n matrices defined in A069480 and A078475.
#49 by N. J. A. Sloane at Sat May 01 22:12:03 EDT 2021
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#48 by Stefano Spezia at Sun Apr 25 15:40:42 EDT 2021
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#47 by Stefano Spezia at Sun Apr 25 12:23:10 EDT 2021
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#46 by Stefano Spezia at Sun Apr 25 12:22:15 EDT 2021
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#45 by Stefano Spezia at Sun Apr 25 12:16:48 EDT 2021
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#44 by Stefano Spezia at Sun Apr 25 12:15:55 EDT 2021
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#43 by Stefano Spezia at Sun Apr 25 12:15:55 EDT 2021
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#42 by Peter Luschny at Sat Apr 24 18:44:48 EDT 2021
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#41 by Sean A. Irvine at Sat Apr 24 18:38:37 EDT 2021
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#40 by Sean A. Irvine at Sat Apr 24 18:38:14 EDT 2021
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Discussion
Sat Apr 24
18:38
Sean A. Irvine: @James, sorry but this is not of sufficient general interest for inclusion in the OEIS.