1,1
Cf. A052017, A048398, A006055.
Sequence in context: A052088 A092066 A028981 this_sequence A120804 A118842 A048402
Adjacent sequences: A052013 A052014 A052015 this_sequence A052017 A052018 A052019
nonn,base,fini,full
Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 1999.
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