This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A093995 n^2 repeated n times, triangle read by rows. 7
 1, 4, 4, 9, 9, 9, 16, 16, 16, 16, 25, 25, 25, 25, 25, 36, 36, 36, 36, 36, 36, 49, 49, 49, 49, 49, 49, 49, 64, 64, 64, 64, 64, 64, 64, 64, 81, 81, 81, 81, 81, 81, 81, 81, 81, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 121, 121, 121, 121, 121, 121, 121, 121, 121 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row sums give A000578; triangle sums give A000537. LINKS Reinhard Zumkeller, Rows n = 1..120 of triangle, flattened FORMULA T(n, k) = n^2, 1<=k<=n. a(n) = floor(sqrt(2*n - 1) + 1/2)^2. - Ridouane Oudra, Jun 18 2019 EXAMPLE First few rows of the triangle are: 1; 4, 4; 9, 9, 9; 16, 16, 16, 16; ... MAPLE seq(seq(n^2, i=1..n), n=1..20); # Ridouane Oudra, Jun 18 2019 MATHEMATICA Flatten[Table[Table[n^2, {n}], {n, 11}]]  (* Harvey P. Dale, Feb 18 2011 *) PROG (Haskell) a093995 n k = a093995_tabl !! (n-1) !! (k-1) a093995_row n = a093995_tabl !! (n-1) a093995_tabl = zipWith replicate [1..] \$ tail a000290_list a093995_list = concat a093995_tabl -- Reinhard Zumkeller, Nov 11 2012, Mar 18 2011, Oct 17 2010 CROSSREFS Cf. A000290, A127733. Cf. A199332. Sequence in context: A175051 A011364 A016713 * A168038 A168280 A162564 Adjacent sequences:  A093992 A093993 A093994 * A093996 A093997 A093998 KEYWORD nonn,tabl AUTHOR Reinhard Zumkeller, May 24 2004 EXTENSIONS Edited by N. J. A. Sloane, Jul 03 2008 at the suggestion of R. J. Mathar STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 20 18:52 EDT 2019. Contains 327245 sequences. (Running on oeis4.)