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Table of n, a(n) for n=4..31.
Sequence in context: A127567 A169643 A005993 * A209535 A065054 A128165
Adjacent sequences: A028244 A028245 A028246 * A028248 A028249 A028250
Anne Fontaine (fonta(AT)hvcc.edu), Hudson Valley Community College, Troy NY 12180.