Triangle T(n,k) = [x^k] n!*(n+1+x^n)*sum_{i=0..n-1} x^i/(i+1) . 2, 1, 6, 3, 2, 1, 24, 12, 8, 6, 3, 2, 120, 60, 40, 30, 24, 12, 8, 6, 720, 360, 240, 180, 144
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