-1429

Appears in sequences

• A transformation of the Catalan sequence.at n=15A129110
• First differences of A142705.at n=43A142888
• a(n) = ( a(n-1) * a(n-3) + a(n-2) ) / a(n-4), a(1) = a(2) = 1, a(3) = -1, a(4) = -4.at n=22A206282
• Square array A(n,k), n >= 0, k >= 1, read by antidiagonals downwards, where column k is the expansion of e.g.f. exp(-Sum_{j=1..k} x^j).at n=62A334561
• E.g.f.: exp(-(x + x^2 + x^3 + x^4)).at n=7A334564
• Values z of primitive solutions (x, y, z) to the Diophantine equation 2*x^3 + 2*y^3 + z^3 = 1.at n=29A338239