83174

Appears in sequences

• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (F(2), F(3), ...), t = (odd natural numbers).at n=28A024592
• Partial sums of the squares of the terms of A060999.at n=11A061001
• Principal diagonal of the convolution array A213774.at n=14A213775
• Partial sums of A286271.at n=25A286272
• a(n) is the integer part of the area of a regular n-gon whose side lengths are n.at n=29A374296