35439

Appears in sequences

• a(n) = p(0) + p(1) + ... + p(n) - n - 1, where p = partition numbers, A000041.at n=31A058682
• Semiprimes in A054567.at n=29A113692
• G.f.: Sum_{n=-oo..+oo} x^n * (sqrt(2) + x^n)^(2*n).at n=15A363561