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Table of n, a(n) for n=3..31.
Column k=1 of A238128.
Sequence in context: A226866 A048474 A054761 * A300985 A080145 A097551
Adjacent sequences: A244194 A244195 A244196 * A244198 A244199 A244200
Joerg Arndt and Alois P. Heinz, Jun 22 2014