A053207 Rows of triangle formed using Pascal's rule except begin n-th row with n and end it with n+1.

0, 1, 2, 3, 3, 4, 5, 6, 7, 6, 7, 11, 13, 13, 8, 9, 18, 24, 26, 21, 10, 11, 27, 42, 50, 47, 31, 12, 13, 38, 69, 92, 97, 78, 43, 14, 15, 51, 107, 161, 189, 175, 121, 57, 16, 17, 66, 158, 268, 350, 364, 296, 178, 73, 18, 19, 83, 224, 426, 618, 714, 660, 474, 251, 91, 20

Offset: 0

Author

Asher Auel, Dec 13 1999

Keywords

• nonn
• easy
• tabl

Examples

			Triangle begins:
  0;
  1,  2;
  3,  3,  4;
  5,  6,  7,  6;
  7, 11, 13, 13, 8;
  ...
		

Crossrefs

Row sums give A053208.

Cf. A007318 (Pascal's triangle)