A143966 Eigentriangle with row sums = A001333 starting (1, 3, 7, 17, 41, 99, ...).

1, 2, 1, 2, 2, 3, 2, 2, 6, 7, 2, 2, 6, 14, 17, 2, 2, 6, 14, 34, 41, 2, 2, 6, 14, 34, 82, 99, 2, 2, 6, 14, 34, 82, 198, 239, 2, 2, 6, 14, 34, 82, 198, 478, 577

Offset: 0

Author

Gary W. Adamson, Sep 06 2008

Keywords

• nonn
• tabl

Comments

Right border = A001333.

Row sums = shifted A001333: (1, 3, 7, 17, 41, 99, ...) = INVERT transform of (1, 2, 2, 2, ...). Sum of n-th row terms = rightmost term of next row.

Examples

			First few rows of the triangle:
  1;
  2, 1;
  2, 2, 3;
  2, 2, 6,  7;
  2, 2, 6, 14, 17;
  2, 2, 6, 14, 34, 41;
  2, 2, 6, 14, 34, 82, 99;
  2, 2, 6, 14, 34, 82, 198, 239;
  ...
		

Crossrefs

Cf. A001333.

Formula

n-th row of the triangle = n terms of twice A001333: (1, 1, 3, 7, 17, 41, 99, ...) followed by A001333(n).