182868

Appears in sequences

• a(n) = 324*n^2 - 804*n + 468 (n>=2).at n=23A304619
• Discriminants of totally real cubic fields with 2 associated nonconjugate fields.at n=34A329786
• a(0) = 1, a(1) = 0, a(2) = 1; a(n) = a(n-1) + Sum_{k=0..n-3} a(k) * a(n-k-3).at n=21A357307