rkg at cpsc.ucalgary.ca
Thu Dec 2 19:13:13 CET 2010
I'm very discouraged at the way OEIS
is going. I suppose it's just the inevitability
of my old age. Here is a (final?) contribution,
though recent experience suggests that no-one
will take any notice.
It seems to me (though my Mother always
told me that I'm not a good looker!) that there
is nothing under A007598 except the bare sequence.
Or is that all I'm allowed to see these days?
It's a divisibility sequence. It is
a third order recurring sequence with characteristic
polynomial x^3 - 2x^2 - 2x + 1,
roots -1, tau^2, 1/tau^2
generating function x(1-x)/(1-2x-2x^2+x^3)
And there must be occurrences in the real
Goodbye! It was fun while it lasted. R.
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