A049089 Array read by antidiagonals: T(1,j)=2j+2 i>=1, T(i,1)=2i+2 i>=1, T(i,j)=T(i-1,j-1)+T(i-1,j).

4, 6, 6, 8, 10, 8, 10, 16, 14, 10, 12, 24, 24, 18, 12, 14, 34, 40, 32, 22, 14, 16, 46, 64, 56, 40, 26, 16, 18, 60, 98, 96, 72, 48, 30, 18, 20, 76, 144, 160, 128, 88, 56, 34, 20, 22, 94, 204, 258, 224, 160, 104, 64, 38, 22, 24, 114, 280, 402, 384, 288, 192, 120, 72, 42, 24, 26, 136, 374, 606, 642

Offset: 1

Author

Benoit Cloitre, Jun 17 2003

Keywords

• nonn
• tabl
• easy

Examples

			Table begins:
   4,   6,   8,  10,  12, ...
   6,  10,  14,  18,  22, ...
   8,  16,  24,  32,  40, ...
  10,  24,  40,  56,  72, ...
  12,  34,  64,  96, 128, ...
  ...
		

Crossrefs

Cf. A079859.

Extensions

Offset corrected by Sean A. Irvine, Jul 18 2021