1,6
See Isgur et al. for precise definition.
Table of n, a(n) for n=1..17.
Abraham Isgur, Vitaly Kuznetsov, and Stephen Tanny, A combinatorial approach for solving certain nested recursions with non-slow solutions, arXiv preprint arXiv:1202.0276, 2012
Cf. A210745.
Sequence in context: A216944 A178832 A111233 * A283986 A105159 A334625
Adjacent sequences: A210743 A210744 A210745 * A210747 A210748 A210749
nonn,more
N. J. A. Sloane, May 10 2012
approved