%I #11 Dec 17 2019 05:33:20
%S 1,2,5,3,11,19,4,19,34,49,5,29,53,77,101,6,41,76,111,146,181,7,55,103,
%T 151,199,247,295,8,71,134,197,260,323,386,449,9,89,169,249,329,409,
%U 489,569,649,10,109,208,307,406,505,604,703,802,901,11,131,251,371,491,611
%N Triangle read by rows in which row n lists n terms, starting with n, with gaps = n^2-1 between successive terms.
%C Note that the last term of the n-th row is A100104(n).
%H Harvey P. Dale, <a href="/A162613/b162613.txt">Table of n, a(n) for n = 1..1000</a>
%e Triangle begins:
%e 1;
%e 2, 5;
%e 3, 11, 19;
%e 4, 19, 34, 49;
%e 5, 29, 53, 77, 101;
%e 6, 41, 76, 111, 146, 181;
%t Table[NestList[#+n^2-1&,n,n-1],{n,11}]//Flatten (* _Harvey P. Dale_, Feb 24 2016 *)
%Y Cf. A000578, A100104, A159797, A159798, A162610, A162611, A162612.
%Y Cf. A100855 (row sums). - _R. J. Mathar_, Jul 20 2009
%K easy,nonn,tabl
%O 1,2
%A _Omar E. Pol_, Jul 09 2009
%E More terms from _Vincenzo Librandi_, Aug 02 2010