Base change notation
Antti Karttunen
antti.karttunen at gmail.com
Thu Aug 3 11:17:23 CEST 2006
Marc LeBrun wrote:
>
>
> 4. Object-oriented ("numbral") arithmetic
>
> More radically, the indexing interpretation doesn't constrain b to be
> a numerical "base" at all--it can be a more general "basis" whose
> elements follow some different algebra, such as GF2. This allows us
> to encode its elements as GF2[n]2 so as to be able to refer to them in
> OEIS sequences, and to write identities such as
>
> (GF2[n]^2)2 = Z2[n]4 (*)
>
> where the types of the subexpressions are clear as is their
> applicative evaluation (a la lambda calculus)...
>
How do you express the sequence
http://www.research.att.com/~njas/sequences/A060112
in your notation, involving rewriting Zeckendorf expansion (i.e. the
Fibonacci number system)
to a standard factorial expansion? That is, what tokens
should be adopted for representing these expansions?
(Of course, the main name of the sequence A060112 SHOULD be:
"Sums of nonconsecutive factorial numbers".)
Yours,
Antti
More information about the SeqFan
mailing list