0,2
(PARI)
Cf. A128320 (triangle), A128321 (column 0), A128322 (column 1), A128323 (column 2); variant: A115084.
Sequence in context: A150827 A150828 A120774 this_sequence A071387 A071389 A026369
Adjacent sequences: A128321 A128322 A128323 this_sequence A128325 A128326 A128327
nonn
Paul D. Hanna (pauldhanna(AT)juno.com), Feb 25 2007
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