Template:Sequence of the Day for April 1

Intended for: April 1, 2015

Timetable

• First draft entered by Alonso del Arte on March 14, 2012 ✓
• Draft reviewed by Daniel Forgues on April 1, 2016 ✓
• Draft to be approved by March 1, 2015

Yesterday's SOTD * Tomorrow's SOTD

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D000019: The decimal digits {1, 2, 3, 4, 5, 6, 7, 8, 9, 0 } with their horizontal reflections (on a vertical mirror) centered over them.

This kind of sequence is not allowed in the OEIS, except maybe on April Fools’ Day...