A351285 Irregular triangle read by rows in which row n gives the y-values of the solutions of the equation 2*(x - 1)*y - (x - 3)*x = 2*n for 0 < x <= y.

2, 3, 4, 5, 3, 6, 7, 4, 8, 9, 5, 4, 10, 11, 6, 12, 5, 13, 7, 14, 5, 15, 8, 6, 16, 17, 9, 18, 7, 6, 19, 10, 20, 6, 21, 11, 8, 22, 7, 23, 12, 24, 9, 25, 13, 7, 26, 8, 27, 14, 10, 7, 28, 29, 15, 30, 11, 9, 8, 31, 16, 32, 33, 17, 12, 8, 34, 10, 35, 18, 9, 8, 36, 13

Offset: 3

Author

Stefano Spezia, Feb 06 2022

Keywords

• nonn
• tabf

Comments

Equivalently, the n-th row gives the row indices corresponding to n in the triangle A351153.

Examples

			Triangle begins:
  2;
  3;
  4;
  5, 3;
  6;
  7, 4;
  8;
  9, 5, 4;
  ...
		

Crossrefs

Cf. A341830, A351153, A136107(row length or solutions number), A351284 (x-values).

Programs

Mathematica

Table[r={};For[d=1,d