1,1
Cf. A006154, A088181.
Sequence in context: A166882 A053983 A107883 this_sequence A006155 A121870 A146887
Adjacent sequences: A088179 A088180 A088181 this_sequence A088183 A088184 A088185
nonn
Karol A. Penson (penson(AT)lptl.jussieu.fr), Sep 22 2003
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