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v[1] = 196 + 1008*x + 972*x^2; for(n = 1, N, my(i = n + 1); v[i] = ((98 + (126*n + 504)*x + (162*n + 486)*x^2)*v[i - 1])/(7 + (9*n + 18)*x)); 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-c11cb6bca0e3e7dc","steps":["basis A013610","\u03b8+1"],"edges":["e-89b2e37c644537dd","e-b1f6461dbd47c0a4"],"text":"A038284 \u2192 basis A013610 \u2192 \u03b8+1"},"headline":"A038284 \u2192 basis A013610 \u2192 \u03b8+1","chain":null}