A153288 A triangular sequence designed with row sums 2*3^n with first column A064263.

2, 3, 3, 2, 14, 2, 2, 25, 25, 2, 2, 36, 86, 36, 2, 2, 47, 194, 194, 47, 2, 2, 58, 302, 734, 302, 58, 2, 2, 69, 410, 1706, 1706, 410, 69, 2, 2, 80, 518, 3390, 5142, 3390, 518, 80, 2

Offset: 0

Author

Roger L. Bagula, Dec 23 2008

Keywords

• nonn
• tabl

Comments

Row sums are:

{2, 6, 18, 54, 162, 486., 1458, 4374., 13122,...}.

Sequence was calculated to the 3^n level by hand.

Examples

			{2},
{3, 3},
{2, 14, 2},
{2, 25, 25, 2},
{2, 36, 86, 36, 2},
{2, 47, 194, 194, 47, 2},
{2, 58, 302, 734, 302, 58, 2},
{2, 69, 410, 1706, 1706, 410, 69, 2},
{2, 80, 518, 3390, 5142, 3390, 518, 80, 2}
		

Crossrefs

A064263

Programs

Mathematica

(* first column : A064263*)
b = {{2}, {3, 3}, {2, 14, 2}, {2, 25, 25, 2}, {2, 36, 86, 36, 2},
{2, 47, 194, 194, 47, 2}, {2, 58, 302, 734, 302, 58, 2},
{2, 69, 410, 1706, 1706, 410, 69, 2}, {2, 80, 518, 3390, 5142, 3390, 518, 80, 2}}
Flatten[b]