A202148 Sum of rows of the triangle in A080381.

1, 2, 4, 8, 12, 32, 36, 100, 132, 392, 384, 1168, 1500, 5332, 5284, 15740, 16804, 60896, 62872, 222948, 243780, 927176, 876004, 2999432, 3284180, 12706832, 12636656, 45043700, 46679920, 176783132, 177597976, 652158968, 700632804, 2696835032, 2735898216

Offset: 0

Author

Jacques ALARDET, Dec 12 2011

Keywords

• nonn

Examples

			a(0)= 1.
a(4)= 1 + 2 + 6 + 2 + 1 = 12.
		

Crossrefs

Cf. A080381.

Programs

Mathematica

Table[Total[Table[GCD[Binomial[n, j], Binomial[n, Floor[n/2]]], {j, 0, n}]], {n, 0, 50}]