231420

Appears in sequences

• Numbers n such that x^n + x^11 + 1 is irreducible over GF(2).at n=44A057481
• a(n) = n*(2*n+1)*binomial(n+2,n)/3.at n=28A289643
• Expansion of 30*x*(1 + x) / (1 - x)^4.at n=27A316459
• Smallest k for which A384834(k) = n.at n=15A386557