5,3
Table of n, a(n) for n=5..9.
E. Friedman and M. Keith, Magic Carpets, J. Int Sequences, 3 (2000), #P.00.2.5.
V. A. Liskovets, Some easily derivable sequences, J. Integer Sequences, 3 (2000), #00.2.2.
Sequence in context: A180829 A094656 A117993 * A197228 A009521 A116120
Adjacent sequences: A055053 A055054 A055055 * A055057 A055058 A055059
nonn
Mike Keith (Domnei(AT)aol.com), Jun 02 2000
approved
