1,2

R. K. Guy, Unsolved Problems in Number Theory, Section C9.

Table of n, a(n) for n=1..26.

Sequence in context: A266082 A105195 A257569 * A083398 A221671 A301640

Adjacent sequences: A039833 A039834 A039835 * A039837 A039838 A039839

nonn

John W. Layman

approved