A098351 - OEIS

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

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..64.

FORMULA

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

EXAMPLE

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,...