A117235 Decimal expansion of the supremum norm of a best cubic polynomial fit to 1/Gamma(z) in the complex unit disk.

2, 1, 4, 3, 3, 5, 2, 3, 4, 5, 9, 0, 4, 5, 9, 6, 3, 9, 4, 6, 1, 5, 2, 6, 4, 0, 0, 1, 8, 4, 7, 4, 9, 3, 9, 6, 1, 1, 3, 4, 0, 7, 2, 8, 7, 7, 8, 9, 5, 1, 6, 7, 0, 8, 0, 7, 3, 9, 3, 4, 9, 8, 5, 9, 7, 0, 9, 8, 7, 6, 7, 6, 0, 7, 4, 0, 5, 4, 5, 9, 8, 1, 6, 9, 4, 7, 9, 8, 8, 4, 7, 8, 8, 8, 3, 0, 5, 3, 3, 0

Offset

0,1

Comments

Decimal expansion of solution to problem #5 in the Trefethen challenge.

Links

Amiram Eldar, Table of n, a(n) for n = 0..10001 (from Dirk Laurie's solution)

Folkmar Bornemann, Short remarks on the solution of the SIAM 100-digit challenge, 2002.

Folkmar Bornemann, Dirk Laurie, Stan Wagon, and Jörg Waldvogel, The SIAM 100-Digit Challenge, A Study in High-Accuracy Numerical Computing, SIAM, Philadelphia, 2004.

Dirk Laurie, A Complex Optimization, a web page for the book The SIAM 100-Digit Challenge.

Eric Weisstein's World of Mathematics, Hundred-Dollar, Hundred-Digit Challenge Problems.

Wikipedia, Hundred-dollar, Hundred-digit Challenge problems.

Example

0.2143352345904596394...

Crossrefs

Cf. A117231, A117232, A117233, A117234, A117236, A117237, A117238, A117239, A117240.

Sequence in context: A094322 A136757 A134599 * A348684 A159573 A102916

Adjacent sequences: A117232 A117233 A117234 * A117236 A117237 A117238

Keyword

nonn,cons

Author

Eric W. Weisstein, Mar 05 2006

Extensions

a(99) corrected by Amiram Eldar, Jan 02 2023

Status

approved