A171698 Square 'central binomial coefficients'-array read by antidiagonals.

1, 1, 1, 2, 2, 2, 6, 6, 4, 4, 20, 20, 14, 8, 8, 70, 70, 50, 30, 16, 16, 252, 252, 182, 112, 62, 32, 32, 924, 924, 672, 420, 238, 126, 64, 64

Offset: 1

Author

Mark Dols, Dec 15 2009

Keywords

• nonn
• tabl

Comments

Antidiagonals sum up to A000984.

Examples

			Example with 0's added:
0,1,1,2,4,8,..
0,1,2,4,8,16,..
0,2,6,14,30,..
Row 2 (binomial): 0+1=1,1+1=2,...
Row 3 (trinomial): 0+1+1=2,2+2+2=6,6+4+4=14...
		

Crossrefs

Cf. A000984, A011782, A009766, A007318.