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Table of n, a(n) for n=0..98.
Simon Plouffe, The Computation of Certain Numbers Using a Ruler and Compass, J. Integer Seqs. Vol. 1 (1998), #98.1.3.
Sequence in context: A144605 A154103 A116178 * A091244 A131378 A014707
Adjacent sequences: A028996 A028997 A028998 * A029000 A029001 A029002
N. J. A. Sloane, Simon Plouffe