79560

Appears in sequences

• Theta series of D8 lattice with respect to midpoint of edge.at n=21A045820
• Numbers k such that phi(k) = 2*tau(k)^2.at n=34A068564
• Least common multiple of all cycle sizes in range [A014137(n-1)..A014138(n-1)] of permutation A082333/A082334.at n=6A089420
• Numbers that can be expressed as the difference of the squares of primes in exactly seven distinct ways.at n=23A092003
• Numbers n with property that n+41, n^2+41 and n^3+41 are all primes.at n=29A175260
• Numbers with prime factorization p*q*r*s^2*t^3 (where p, q, r, s, t are distinct primes).at n=21A190111
• Denominators of first derivatives of Catalan numbers (as continuous functions of n).at n=17A260631
• Expansion of Product_{k>=1} 1 / ((1-x^(3*k-1))^(3*k-1) * (1-x^(3*k-2))^(3*k-2)).at n=24A262923
• Number of (undirected) paths in the n-gear graph.at n=15A292000
• Harary index of the n X n white bishop graph.at n=31A296200