A120011 and A127275

[Richard Mathar]

hi,

does anyone recognise the entries in the triangular table below?
{[0]},
{[0],        [0]},
{[0],        [0],         [0]},
{[2],        [0],         [2],          [0]},
{[0],        [3],         [0],          [0],             [3]},
{[2, 3],    [3],      [2, 4],          [3],         [2, 3],    [0]},
{[0],        [4],         [4],          [5],              [0],     [4],
[4]},
{[2, 4], [3, 4], [2, 4, 5],          [5],  [2, 3, 4, 6],    [4],    [2, 4],
[3, 5]},
{[3],     [3, 5],         [5],  [3, 5, 6],          [3, 6],    [7],    [3,
5],     [3, 5],   [5]}

I've got a vague hunch it has to do with relative prime - EulerPhi
and divisors - MoebiusMu of   Table[n+k-1,{n,9},{k,n}]
and has a connection to Cyclotomic polynomials,
but I can't seem to get my fingers under it.

I know of no OEIS lookup catering for the extra dimension.

Wouter.