References to A155124

Coefficient triangle of polynomial: p(x,m)= -(m - 1) + 2*Sum[x^k, {k, 1, m}].
1, 0, 2, 1, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 6, 2, 2

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