Template:Sequence of the Day for March 27

Intended for: March 27, 2013

Timetable

• First draft entered by Alonso del Arte on December 26, 2011 ✓
• Draft reviewed by Daniel Forgues on December 27, 2011 ✓, March 14, 2016 ✓, March 26, 2018 ✓
• Draft approved by Charles R Greathouse IV on March 30, 2012 ✓

Yesterday's SOTD * Tomorrow's SOTD

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A202955: Decimal expansion of

π ↑↑ 4   ≡   π π π π

.

90802224553906177697...

This number,

9.080222…  ×  10 666262452970848503

, is even larger than

e ↑↑ 4   ≡   e e e e

(see A085667), boasting 666262452970848504 (instead of 1656521) digits to the left of the decimal point.

Tetration is the 4^th operation (the 3^rd is multiplication, the 2^nd is addition, and the 1^st is the successor operation).