1,7

Sequence is eventually periodic with period 62. The last exception is at n=121. - Eric M. Schmidt, Jan 20 2017

E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982; see Chapter 4.

Eric M. Schmidt, Table of n, a(n) for n = 1..200

Sequence in context: A325310 A308881 A281488 * A091829 A194188 A104512

Adjacent sequences: A071458 A071459 A071460 * A071462 A071463 A071464

nonn

N. J. A. Sloane and Sue Pope, May 29 2002

Edited and extended by Eric M. Schmidt, Jan 20 2017

approved