83456

Appears in sequences

• T(n,n), array T as in A047140.at n=10A047142
• Scaled convolution of (n^3)*A000984(n) with A000984(n).at n=31A142962
• Janet periodic table of the elements and structured hexagonal diamond numbers. a(n) = A166911(2*n) + A166911(2*n+1).at n=15A167471
• Numbers of the form p^9*q where p and q are distinct primes.at n=37A179692
• Triangular array read by rows. T(n,k) is the number of square lattice walks that start and end at the origin after 2n steps having k primitive loops; n>=1, 1<=k<=n.at n=18A227997
• a(n) = (n^2 + 4*n + 6) * n^2.at n=16A258402
• Expansion of g.f. A(x) satisfying A(x) = (1 + 2*x*A(x))^2 / (1 + 2*x*A(x) - 2*x^3*A(x)^3).at n=10A365516