Included in accordance with OEIS policy of including published but incorrect versions of sequences.
Richard K. Guy, Unsolved Problems in Number Theory, 3rd Edition, Springer, 2004. See Section B41, p. 147.
Table of n, a(n) for n=1..7.
Sequence in context: A076920 A183225 A020774 * A347098 A229920 A201562
Adjacent sequences: A291300 A291301 A291302 * A291304 A291305 A291306