1,4
Cf. A062460.
Adjacent sequences: A061563 A061564 A061565 this_sequence A061567 A061568 A061569
Sequence in context: A027989 A096483 A093043 this_sequence A082398 A053156 A120897
easy,nonn
Leroy Quet (qq-quet(AT)mindspring.com), May 18 2001
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