43023

Appears in sequences

• a(n) = Sum_{k=0..floor(n/2)} T(n-k,k), T given by A026747.at n=20A026757
• Smaller of consecutive values in A075407.at n=10A074888
• Integer part of Gauss's Arithmetic-Geometric Mean M(1,n^4).at n=24A127760
• a(n) is the number of reducible monic quartic polynomials (x^4 + r*x^3 + s*x^2 + t*x + u) with integer coefficients bounded by naïve height n (abs(r), abs(s), abs(t), abs(u) <= n).at n=11A358399