135792

Appears in sequences

• Primitive elements of A096490.at n=38A118671
• Partial sums of A004111.at n=18A196118
• Triangle read by rows: T(n,k) is the number of chiral pairs of colorings of the edges of a regular n-dimensional simplex using exactly k colors. Row n has (n+1)*n/2 columns.at n=15A327089
• Triangle read by rows: T(n,k) is the number of chiral pairs of colorings of the faces (and peaks) of a regular n-dimensional simplex using exactly k colors. Row n has C(n+1,3) columns.at n=10A338115
• a(n) = n * Sum_{d|n} binomial(d+3,4)/d.at n=40A343545