Re^2: Error-finding program

[Ralf Stephan]

> The definitions of A026468 and A026469 are
>  a(n) = least positive integer > a(n-1) and not a(i)^2 + a(j)^2 for 1<=i<=j<=n.
> and
>  a(n) = least positive integer > a(n-1) and not a(i)^2 + a(j)^2 for 1<=i<=j<=n.  	
> which looks quite identical. So why can A026468/9 be two different
> sequences? Is there a "not" too much or too little, or rather one of the 
> "less-equal" signs to be corrected to "less" or a starting condition on a(2)
> to be added?

My guess is that Clark started the same algorithm with 1, 2 and then
tried it with starting values 1, 3, so the definition of A026469 should 
be amended with ", starting with 1, 3".


ralf