question

[Floor van Lamoen]

Dear Neil, (I have CC-ed SeqFan)

[NJAS]:
> could you give me an example?
> i don't quite understand the definitions

Let us consider the number 13. The following partitions give a
nondegenerate triangle:

 4 4 5
 3 5 5
 1 6 6
 2 5 6
 3 4 6

That gives the a(13)=5 for one sequence. Since the first three
partitions represent isosceles triangles, we have b(13)=3 for the other
sequence.

I hope this clarifies.

Best regards,
Floor van Lamoen.