46280

Appears in sequences

• Numbers k such that k*Sum_{d|k} 1/sigma(d) is an integer.at n=29A069166
• Triangle read by rows: T(n,k) is the number of chiral pairs of color loops of length n with exactly k different colors.at n=40A305541
• Number of chiral pairs of color loops of length n with exactly 5 different colors.at n=8A305544
• T(n,k) is the number of non-equivalent distinguishing colorings of the cycle on n vertices with exactly k colors (k>=1). Regular triangle read by rows, n >= 1, 1 <= k <= n.at n=40A309651