0,2
Shift left 1 place equals twice column 1 of triangle A107717.
(PARI)
Cf. A107717, A107722.
Adjacent sequences: A107720 A107721 A107722 this_sequence A107724 A107725 A107726
Sequence in context: A141141 A128571 A052696 this_sequence A035051 A012628 A012623
nonn
Paul D. Hanna (pauldhanna(AT)juno.com), May 30 2005
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