0,2
D. Merlini, R. Sprugnoli and M. C. Verri, The tennis ball problem, J. Combin. Theory, A 99 (2002), 307-344 (Table A.3).
Sequence in context: A125450 A193709 A157689 * A206521 A206514 A016207
Adjacent sequences: A079513 A079514 A079515 * A079517 A079518 A079519
nonn
N. J. A. Sloane (njas(AT)research.att.com), Jan 22 2003