0,2
G.f.: 1/[(1-x)(1-7x)(1-49x)(1-343x)].
Sequence in context: A038483 A006764 A108034 this_sequence A013767 A013895 A029705
Adjacent sequences: A022229 A022230 A022231 this_sequence A022233 A022234 A022235
nonn
njas
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