1,2
Cf. A054990.
Sequence in context: A122626 A135025 A070713 this_sequence A138991 A138990 A014543
Adjacent sequences: A060247 A060248 A060249 this_sequence A060251 A060252 A060253
nonn
Robert G. Wilson V (rgwv(AT)rgwv.com), Mar 23 2001, Mar 23 2001
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