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A228703
Arises in analysis of the halving procedure for detecting two defectives among n items.
0
6, 23, 91, 5793, 46341, 92682, 185364, 370728
OFFSET
1,1
REFERENCES
Chang, X. M.; Hwang, F. K.; Weng, J. F. Optimal detection of two defectives with a parity check device. SIAM J. Discrete Math. 1 (1988), no. 1, 38--44. MR0936604 (89g:90121).
CROSSREFS
Sequence in context: A295132 A013261 A013265 * A344815 A220372 A321715
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Sep 06 2013
STATUS
approved