1,2
Cf. 2 X n A001047, n X 2 A034182, vertical path of 1 A069361-A069395, vertical paths of 0+1 A069396-A069416, vertical path of 1 not 0 A069417-A069428, no vertical paths A069429-A069447, no horizontal or vertical paths A069448-A069452.
Sequence in context: A168227 A074996 A045055 this_sequence A106719 A119722 A168432
Adjacent sequences: A069424 A069425 A069426 this_sequence A069428 A069429 A069430
nonn
Ron Hardin (rhhardin(AT)att.net), Mar 22 2002.
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