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v[1] = 0; v[2] = 0; v[3] = 4; v[4] = 16; for(n = 4, N, my(i = n + 1); v[i] = 4*v[i - 1] - 6*v[i - 2] + 4*v[i - 3] - (1 - 16*x)*v[i - 4]); v};\nrow(n, p) = {my(c = Vecrev(p)); c};\nT(N) = {my(v = P(N)); concat(vector(#v, i, row(i - 1, v[i])))};\nT(9)","reading":{"first_row":0,"offset":0,"reversed":false,"trim_zeros":"none","regular_triangle":false}}],"derivation":{"root":"n-75ccd0453a9b6cec","steps":["x \u21a6 x\u22121/4","Veronese 2 (j=1)"],"edges":["e-44df003225948a93","e-a5a16e178035b04e"],"text":"A011973 \u2192 x \u21a6 x\u22121/4 \u2192 Veronese 2 (j=1)"},"headline":"A011973 \u2192 x \u21a6 x\u22121/4 \u2192 Veronese 2 (j=1)","chain":null}