Number of monomials in discriminant of symbolic Tschirnhausen polynomial of degree n (with three zero coefficients at x^(n-1), x^(n-2) and x^(n-3)).
A138802
Number of monomials in discriminant of symbolic Tschirnhausen polynomial of degree n (with three zero coefficients at x^(n-1), x^(n-2) and x^(n-3)).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =7a(6) =26a(7) =115a(8) =521a(9) =2502a(10) =12389a(11) =63236a(12) =330455a(13) =1762852
External references
- oeis: A138802