[seqfan] Re: new dragon conjecture

[Kevin Ryde]

brad klee via SeqFan <seqfan at list.seqfan.eu> writes:
>
> The upshot is a new (?) definition for the regular
> paper folding sequence

The key is the bit above the least significant 1 bit.
Or bit above least significant 0 bit if offset by one.
There's a couple of bit twiddles which can make a mask
or similar to help inspect that bit in a given n.

> 4-ary sequence

Alas your download links don't work for me.
On the off chance you mean a 4 symbol morphism
which maps to the paperfolding sequence, then:

    A112658, A122002, A125047, A343180