reflected sequences
Michael Somos
somos at grail.cba.csuohio.edu
Fri Sep 20 23:33:43 CEST 2002
seqfans,
Just recently I have noticed some OEIS entries referring to
"reflected" sequences. Apparently what is meant is that there is
a natural function from integers to integers and the sequence
a(0),a(1),a(2),.... is a reflection of a(-1),a(-2),a(-3),... .
One could also argue for a(0),a(-1),a(-2),... as being reflection
of the original sequence. Perhaps it is time to introduce a good
convention to use for purposes of OEIS? That way one could have
comments such as a(n)=n^2 is its own reflection. Shalom, Michael
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