35120

Appears in sequences

• Structured hexagonal diamond numbers (vertex structure 5).at n=29A100178
• a(n) = (2*n^3 + 5*n^2 - 13*n)/2.at n=31A162262
• a(n) = Sum_{k=1..n} mu(k) * (floor(n/k)^4 - floor((n-1)/k)^4).at n=21A344597
• Numbers k that divide the concatenation of sigma(k-1) and sigma(k+1).at n=13A356985
• Number of integer partitions of n whose length is not a semi-sum of the parts.at n=43A367398
• a(n) = binomial(n+3, 4) + binomial(n+1, 3) + 1.at n=28A368881