A118373 Product of decimal digits of two successive natural numbers.

0, 2, 6, 12, 20, 30, 42, 56, 72, 0, 0, 2, 6, 12, 20, 30, 42, 56, 72, 0, 0, 8, 24, 48, 80, 120, 168, 224, 288, 0, 0, 18, 54, 108, 180, 270, 378, 504, 648, 0, 0, 32, 96, 192, 320, 480, 672, 896, 1152, 0, 0, 50, 150, 300, 500, 750, 1050, 1400, 1800, 0, 0, 72, 216, 432, 720