A098351 Multiplication table of the composites read by antidiagonals.

16, 24, 24, 32, 36, 32, 36, 48, 48, 36, 40, 54, 64, 54, 40, 48, 60, 72, 72, 60, 48, 56, 72, 80, 81, 80, 72, 56, 60, 84, 96, 90, 90, 96, 84, 60, 64, 90, 112, 108, 100, 108, 112, 90, 64, 72, 96, 120, 126, 120, 120, 126, 120, 96, 72, 80, 108, 128, 135, 140, 144, 140, 135, 128

Offset: 1

Author

Douglas Stones (dssto1(AT)student.monash.edu.au), Sep 04 2004

Keywords

• nonn
• tabl

Examples

			16, 24, 32, 36, 40, 48, 56, 60, 64, 72,...
24, 36, 48, 54, 60, 72, 84, 90, 96,108,...
32, 48, 64, 72, 80, 96,112,120,128,144,...
36, 54, 72, 81, 90,108,126,135,144,162,...
40, 60, 80, 90,100,120,140,150,160,180,...
48, 72, 96,108,120,144,168,180,192,216,...
		

Crossrefs

Cf. A003991, A098350.

Formula

T(n,k) = A002808(n)*A002808(k).