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 A090642 Triangle read by rows: T(n,k) = binomial(n^2, k), 0 <= k <= n. 11
 1, 1, 1, 1, 4, 6, 1, 9, 36, 84, 1, 16, 120, 560, 1820, 1, 25, 300, 2300, 12650, 53130, 1, 36, 630, 7140, 58905, 376992, 1947792, 1, 49, 1176, 18424, 211876, 1906884, 13983816, 85900584, 1, 64, 2016, 41664, 635376, 7624512, 74974368, 621216192 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 COMMENTS A066382(n) = Sum_{k=0..n} T(n,k). LINKS Nathaniel Johnston, Rows 0..100, flattened EXAMPLE Triangle begins:   1;   1,  1;   1,  4,   6;   1,  9,  36,   84;   1, 16, 120,  560,  1820;   1, 25, 300, 2300, 12650,  53130;   1, 36, 630, 7140, 58905, 376992, 1947792;   ... MAPLE for n from 0 to 6 do seq(binomial(n^2, k), k=0..n); od; # Nathaniel Johnston, Jun 24 2011 CROSSREFS Cf. A007318 (Pascal's triangle), A014062 (right diagonal). Sequence in context: A021688 A119439 A290823 * A100612 A322778 A079160 Adjacent sequences:  A090639 A090640 A090641 * A090643 A090644 A090645 KEYWORD nonn,tabl,easy AUTHOR Reinhard Zumkeller, Dec 13 2003 STATUS approved

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Last modified July 25 10:05 EDT 2021. Contains 346289 sequences. (Running on oeis4.)