153340

Appears in sequences

• a(n) = Max { k>0 : denominator(S(k,2n+1)) } where S(k,s)=sum(i=1,k,i^s*H(i,2)) - H(k,2)*H(k,-s) and H(k,r)=sum(i=1,k,1/i^r) are the generalized harmonic numbers.at n=39A096442
• a(n) = n*(n + 7)*(n + 14)*(n + 21)/24.at n=34A264447
• Starts of runs of 3 consecutive factorial base Niven numbers (A118363).at n=26A328206
• Numbers k such that k, k^2-1 and k^2+1 are all fine, where a number m is fine if its prime factors are all less than m^(1/3).at n=39A345896
• Number of ways to partition the set of vertices of a convex {n+8}-gon into 3 non-intersecting polygons.at n=33A350116