1,2
a(n) = A002884(n) / 2^(n-1).
For example for n=4 the matrix is / 1,1,1,1 / 0,1,1,1 / 0,0,1,1 / 0,0,0,1 /.
Cf. A002884, A070731, A082877, A062383.
Sequence in context: A097068 A092470 A078601 this_sequence A058808 A137192 A059802
Adjacent sequences: A083399 A083400 A083401 this_sequence A083403 A083404 A083405
nonn
Yuval Dekel (dekelyuval(AT)hotmail.com), Jun 12 2003
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