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Table of n, a(n) for n=0..23.
Cf. A137161, A137163.
Sequence in context: A328380 A256222 A258976 * A293863 A086769 A018753
Adjacent sequences: A137159 A137160 A137161 * A137163 A137164 A137165
Paolo P. Lava and Giorgio Balzarotti, Jan 25 2008