Riesel numbers and others

[Richard Guy]

I'm going thru old email, and wondered why
Neil would want to add three sequences.
If one were pedantic, as this one is, and
had the time, one would write `adjoin',
`append', `insert', `recruit',... (I
haven't got my jolly Roget with me)

Meanwhile, we can generate a large number
of sequences by adding subsets of existing
ones!        R.

On Thu, 7 Nov 2002, N. J. A. Sloane wrote:

> A recent email from Olivier led me to
> add these three sequences.  The 2nd and 3rd badly need
> extending!    Neil

[snip]