2,2
Cf. A128796; A036289.
Sequence in context: A017114 A092820 A060300 this_sequence A004409 A054851 A000762
Adjacent sequences: A128982 A128983 A128984 this_sequence A128986 A128987 A128988
nonn
Mohammad K. Azarian (azarian(AT)evansville.edu), Apr 30 2007
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