1,2
CRC Handbook of Combinatorial Designs, 1996, p. 483.
Sequence in context: A070320 A124195 A079584 this_sequence A096494 A116568 A061106
Adjacent sequences: A004076 A004077 A004078 this_sequence A004080 A004081 A004082
nonn,hard
N. J. A. Sloane (njas(AT)research.att.com).
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