A351284 Irregular triangle read by rows: the n-th row gives the x-values of the solutions of the equation 2*(x - 1)*y - (x - 3)*x = 2*n for 0 < x <= y.

2, 2, 2, 2, 3, 2, 2, 3, 2, 2, 3, 4, 2, 2, 3, 2, 4, 2, 3, 2, 5, 2, 3, 4, 2, 2, 3, 2, 4, 5, 2, 3, 2, 6, 2, 3, 4, 2, 5, 2, 3, 2, 4, 2, 3, 6, 2, 5, 2, 3, 4, 7, 2, 2, 3, 2, 4, 5, 6, 2, 3, 2, 2, 3, 4, 7, 2, 5, 2, 3, 6, 8, 2, 4, 2, 3, 2, 5, 2, 3, 4, 7, 2, 6, 2, 3, 2, 4, 5, 8

Offset: 3

Author

Stefano Spezia, Feb 06 2022

Keywords

• nonn
• tabf

Comments

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

Examples

			Triangle begins:
  2;
  2;
  2;
  2, 3;
  2;
  2, 3;
  2;
  2, 3, 4;
  ...
		

Crossrefs

Cf. A341829, A351153, A136107 (row length or solutions number), A351285 (y-values).

Programs

Mathematica

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