Template:Sequence of the Day for February 22

Intended for: February 22, 2012

Timetable

• First draft entered by Alonso del Arte on November 25, 2011 ✓
• Draft reviewed by Daniel Forgues on February 22, 2016 ✓
• Draft to be approved by January 22, 2012

Yesterday's SOTD * Tomorrow's SOTD

The line below marks the end of the <noinclude> ... </noinclude> section.

---

A008604: Multiples of 22.

{ 22, 44, 66, 88, 110, 132, 154, ... }

An even number that is divisible by 22 is obviously divisible by 11. (In base 10, a number is divisible by 11 if and only if the sum of “digits” in base 100 is divisible by 11, e.g. 1 + 10 = 11, 1 + 32 = 33, 1 + 54 = 55, ..., 2 + 14 + 94 = 110 implies that 110, 132, 154, ..., 21494 are divisible by 11.)