The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A317302

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A317302

Square array T(n,k) = (n - 2)*(k - 1)*k/2 + k, with n >= 0, k >= 0, read by antidiagonals upwards.
(history; published version)

#41 by Michael De Vlieger at Sun Jan 28 23:27:05 EST 2024

STATUS

proposed

approved

#40 by Andrew Howroyd at Sun Jan 28 21:29:56 EST 2024

STATUS

editing

proposed

#39 by Andrew Howroyd at Sun Jan 28 21:25:09 EST 2024

LINKS

Omar E. Pol, <a href="http://www.polprimos.com/imagenespub/polnum01.jpg">Polygonal numbers</a>.

The OEIS, <a href="http://oeis.org/wiki/Polygonal_numbers">Polygonal numbers</a>.

University of Surrey, Dept. of Mathematics, <a href="http://www.maths.surrey.ac.uk/hosted-sites/R.Knott/Figurate/figurate.html">Polygonal Numbers - or Numbers as Shapes</a>.

Eric W. Weisstein, 's World of Mathematics, <a href="httphttps://mathworld.wolfram.com/FigurateNumber.html">Figurate Number</a>.

Eric W. Weisstein, 's World of Mathematics, <a href="httphttps://mathworld.wolfram.com/PolygonalNumber.html">Polygonal Number</a>.

Wikipedia, <a href="https://en.wikipedia.org/wiki/Polygonal_number">Polygonal number</a>.

STATUS

approved

editing

#38 by Susanna Cuyler at Tue Aug 14 21:06:13 EDT 2018

STATUS

proposed

approved

#37 by Omar E. Pol at Sat Aug 11 15:54:20 EDT 2018

STATUS

editing

proposed

#36 by Omar E. Pol at Sat Aug 11 15:54:15 EDT 2018

EXAMPLE

7 Heptagoganls Heptagonals A000566: 0, 1, 7, 18, 34, 55, 81, 112, 148, ...

STATUS

proposed

editing

#35 by Omar E. Pol at Sat Aug 11 14:31:10 EDT 2018

STATUS

editing

proposed

#34 by Omar E. Pol at Sat Aug 11 14:31:05 EDT 2018

CROSSREFS

Column 2 gives A001477, which coincides with the same as row 2numbers.

STATUS

proposed

editing

#33 by Omar E. Pol at Sat Aug 11 14:26:03 EDT 2018

STATUS

editing

proposed

#32 by Omar E. Pol at Sat Aug 11 14:25:59 EDT 2018

NAME

Square array T(n,k) = (n - 2)*(k - 1)*k/2 + k, with n >= 0, k >= 0, read by antidiagonals upwards: T(n,k) = (n - 2)*(k - 1)*k/2 + k, with n >= 0, k >= 0.

STATUS

proposed

editing