not of form m^p-n^q

[Jud McCranie]

At 06:10 PM 10/9/2002 -0400, N. J. A. Sloane wrote:

>There is a closely related sequence that will also probably
>change:
>
>%I A074980
>%S A074980 
>6,10,14,34,42,46,50,58,62,66,70,78,82,86,90,102,110,114,122,130,134,
>%T A074980 146,150,158,162,166,178,182,194

%E A074980 Probably wrong. Will be modified. - njas

>Although I don't think this has received much attention yet.
>Maybe someone could check it.

Checking squares and cubes up to 2^31-32, I get:

6,10,14,34,42,46,50,58,62,66,70,78,82,86,90,102,110,114,122,130,134,
158,162,166,178,182,194,202,206,210,214,226,230,234,238,246,250,254,
258,266,274,278,290,302,306,310,314,322,326,330,338,354,358,374,378

Note that 146 and 150 are NOT in the sequence:

146 = 195^3 - 2723^2
150 = 175^3 - 2315^2

And of course, others may eventually be knocked off the list.


+---------------------------------------------------------+
|       Jud McCranie                                      |
|                                                         |
| Programming Achieved with Structure, Clarity, And Logic |
+---------------------------------------------------------+