238513

Appears in sequences

• Number of partitions of 1 into distinct fractions i/j with 1<=i<j<=n and i,j coprime.at n=31A116084
• a(n) is the n-th J_6-prime (Josephus_6 prime).at n=24A163786
• Number of n-bead necklaces labeled with numbers -2..2 not allowing reversal, with sum zero and first differences in -2..2.at n=12A208987
• Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w<R, x>R, y>R, z>R, where R = max{w,x,y,z} - min{w,x,y,z}.at n=22A212754