1,4
R. K. Guy, Parker's permutation problem involves the Catalan numbers, Amer. Math. Monthly 100 (1993), 287-289.
Sequence in context: A100752 A011934 A100206 this_sequence A047862 A048755 A055267
Adjacent sequences: A007041 A007042 A007043 this_sequence A007045 A007046 A007047
nonn
njas, R. K. Guy
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